Add force ref flag

[TrueCarry]

Sometimes after deserialization - serialization procedure transaction gets changed. To avoid it, we store original ref value and use it in serialization stage. This code could be suboptimal, but it helped in my case.
Example:
Original boc:

b5ee9c72410221010006830003b577170dd71789f9a3188326ddbbdd3adb65fc0b954909750c9b93046ec61ed5cf5000026fe7a46a9c55392e3e9726ae00bfebcb314d22337763476dbd3489a212cb83779928b64e06f000026fe7192e15d656605ad0003477940168050401021704604905f5e100187085fb110302006fc9d4a7e04ce1bec8000000000002000000000002195f9a3c3ef09ea3608b434fa955c58e3cf8c5b85257e231b4c001b66b9c6ace45d10cd4009e443aec186a000000000000000000b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008272ee1547b701d5cf2f1f33fa4bb2e4a78438ef86915bdf03c3658825a71447e53867988495ccd16d0fb77a312793f2b4427cc12f1dcdd959f33420716be50ecc2f0201e01d060101df0702b16800e2e1bae2f13f34631064dbb77ba75b6cbf8172a9212ea19372608dd8c3dab9eb00148e6dc6b14398b15df989b304abc51ac22d92938ba5c63f516708c0396c816f505aa811a006e1c01c00004dfcf48d538ccacc0b5be0090801b1178d4519000000000000000053a8e917300801d52089cd68e4b01cccaee1a99987256674665967360b887cde681aaf283849df003aa41139ad1c96039995dc353330e4acce8ccb2ce6c1710f9bcd0355e507093bd053724e031f0201340b0a018708006216e3668030472deb741120610343ded569beae34794f60bdff489894761f250026a36945355d74808d30fec4e57ba44e3d7c6b60e2af2417710b08e26d1af405600b0114ff00f4a413f4bcf2c80b0c0201620e0d001ba0f605da89a1f401f481f481a8610202cb170f0201621110008148020d721ed44d0fa00fa40fa40d43004d31f218210178d4519ba0282107bdd97deba12b1f2e2c5d33f31fa003013a05023c85004fa0258cf1601cf16ccc9ed548020120131200e33b51343e803e903e90350c01f4cffe803e903d010c1458a85492b1c17cb8b04a30bffcb8b0a0822625a02a8005e805ef3cb8b0e0841ef765f7b232c7f2cfd4017e808873c59400f3c5bd00325c60063232c14933c59c3e80b2dab33260103ec01004f214013e809633c58073c5b3327b552003f73b51343e803e903e90350c0234cffe80145468017e903e9014d6f1c1551cdb5c150804d50500f214013e809633c58073c5b33248b232c044bd003d0032c0327e401c1d3232c0b281f2fff274140371c1472c7cb8b0c2be80146a2860822625a020822625a004ad822860822625a028062849f8c3c975c2c070c008e01615140076c200b08e218210d53276db708010c8cb055008cf165004fa0216cb6a12cb1f12cb3fc972fb0093356c21e203c85004fa0258cf1601cf16ccc9ed54000e10491038375f0400705279a018a182107362d09cc8cb1f5230cb3f58fa025007cf165007cf16c9718010c8cb0524cf165006fa0215cb6a14ccc971fb00102410230201201a1801f1f81e99ffd007d2010f801f6a2687d007d207d206a18289b50a9156382f9716094617ff971612a1a21382a1009aa0a01e428027d012c678b00e78b666491646580897a007a00658064907c80383a6465816503e5ffe4e8027d207a0218fd00106ba4e1007971623bc00c646582a804678b387d010be5b589e641900ae8210178d4519c8cb1f19cb3f5007fa0222cf165006cf1625fa025003cf16c95005cc2391729171e25008a813a08208989680aa008208989680a0a014bcf2e2c504c98040fb001023c85004fa0258cf1601cf16ccc9ed540201481c1b00115fa443070baf2e14d800b7420c700925f04e001d0d3030171b095135f03f012e0fa40fa4031fa003171d721fa0031fa003002d31f2182100f8a7ea5ba95313459f00fe0218210178d4519ba9631444403f010e0358210595f07bcba9359f011e05f04840ff2f0801b16801d52089cd68e4b01cccaee1a99987256674665967360b887cde681aaf283849df001c5c375c5e27e68c620c9b76ef74eb6d97f02e552425d4326e4c11bb187b573d505f5e10000634b1b000004dfcf48d5388cacc0b5ac01e02b20f8a7ea5000000000000000053a8e9173008006216e3668030472deb741120610343ded569beae34794f60bdff489894761f25003aa41139ad1c96039995dc353330e4acce8ccb2ce6c1710f9bcd0355e507093be829b92701201f0091801351b4a29aaeba4046987f6272bdd2271ebe35b07157920bb8858471368d7a02b0026ca31398401d4a7cec2bce4b3a96839031f71e3ba311b4de3cc49e8abbc468d96f51108228e0000072b3a2ea

Boc after serialization:

b5ee9c72410221010006830003b577170dd71789f9a3188326ddbbdd3adb65fc0b954909750c9b93046ec61ed5cf5000026fe7a46a9c55392e3e9726ae00bfebcb314d22337763476dbd3489a212cb83779928b64e06f000026fe7192e15d656605ad0003477940168050401021704604905f5e100187085fb110302006fc9d4a7e04ce1bec8000000000002000000000002195f9a3c3ef09ea3608b434fa955c58e3cf8c5b85257e231b4c001b66b9c6ace45d10cd4009e443aec186a000000000000000000b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008272ee1547b701d5cf2f1f33fa4bb2e4a78438ef86915bdf03c3658825a71447e53867988495ccd16d0fb77a312793f2b4427cc12f1dcdd959f33420716be50ecc2f0201e01d060101df0702b16800e2e1bae2f13f34631064dbb77ba75b6cbf8172a9212ea19372608dd8c3dab9eb00148e6dc6b14398b15df989b304abc51ac22d92938ba5c63f516708c0396c816f505aa811a006e1c01c00004dfcf48d538ccacc0b5be0090801b1178d4519000000000000000053a8e917300801d52089cd68e4b01cccaee1a99987256674665967360b887cde681aaf283849df003aa41139ad1c96039995dc353330e4acce8ccb2ce6c1710f9bcd0355e507093bd053724e031f0201340b0a018708006216e3668030472deb741120610343ded569beae34794f60bdff489894761f250026a36945355d74808d30fec4e57ba44e3d7c6b60e2af2417710b08e26d1af405600b0114ff00f4a413f4bcf2c80b0c0201620e0d001ba0f605da89a1f401f481f481a8610202cb170f0201621110008148020d721ed44d0fa00fa40fa40d43004d31f218210178d4519ba0282107bdd97deba12b1f2e2c5d33f31fa003013a05023c85004fa0258cf1601cf16ccc9ed548020120131200e33b51343e803e903e90350c01f4cffe803e903d010c1458a85492b1c17cb8b04a30bffcb8b0a0822625a02a8005e805ef3cb8b0e0841ef765f7b232c7f2cfd4017e808873c59400f3c5bd00325c60063232c14933c59c3e80b2dab33260103ec01004f214013e809633c58073c5b3327b552003f73b51343e803e903e90350c0234cffe80145468017e903e9014d6f1c1551cdb5c150804d50500f214013e809633c58073c5b33248b232c044bd003d0032c0327e401c1d3232c0b281f2fff274140371c1472c7cb8b0c2be80146a2860822625a020822625a004ad822860822625a028062849f8c3c975c2c070c008e01615140076c200b08e218210d53276db708010c8cb055008cf165004fa0216cb6a12cb1f12cb3fc972fb0093356c21e203c85004fa0258cf1601cf16ccc9ed54000e10491038375f0400705279a018a182107362d09cc8cb1f5230cb3f58fa025007cf165007cf16c9718010c8cb0524cf165006fa0215cb6a14ccc971fb00102410230201201a1801f1f81e99ffd007d2010f801f6a2687d007d207d206a18289b50a9156382f9716094617ff971612a1a21382a1009aa0a01e428027d012c678b00e78b666491646580897a007a00658064907c80383a6465816503e5ffe4e8027d207a0218fd00106ba4e1007971623bc00c646582a804678b387d010be5b589e641900ae8210178d4519c8cb1f19cb3f5007fa0222cf165006cf1625fa025003cf16c95005cc2391729171e25008a813a08208989680aa008208989680a0a014bcf2e2c504c98040fb001023c85004fa0258cf1601cf16ccc9ed540201481c1b00115fa443070baf2e14d800b7420c700925f04e001d0d3030171b095135f03f012e0fa40fa4031fa003171d721fa0031fa003002d31f2182100f8a7ea5ba95313459f00fe0218210178d4519ba9631444403f010e0358210595f07bcba9359f011e05f04840ff2f0801b16801d52089cd68e4b01cccaee1a99987256674665967360b887cde681aaf283849df001c5c375c5e27e68c620c9b76ef74eb6d97f02e552425d4326e4c11bb187b573d505f5e10000634b1b000004dfcf48d5388cacc0b5ac01e02b20f8a7ea5000000000000000053a8e9173008006216e3668030472deb741120610343ded569beae34794f60bdff489894761f25003aa41139ad1c96039995dc353330e4acce8ccb2ce6c1710f9bcd0355e507093be829b92701201f0091801351b4a29aaeba4046987f6272bdd2271ebe35b07157920bb8858471368d7a02b0026ca31398401d4a7cec2bce4b3a96839031f71e3ba311b4de3cc49e8abbc468d96f51108228e0000072b3a2ea

Difference:

[Re2906]

0:4818f679ede118884806590b9b705a00fa6aa0cf7009d4b3d128ff263b031c88