feat: fswap module's basic functionality(MsgSwap, MsgSwapAll, Query, Proposal) #4146

Job	Run time
build (amd64, gcc)	1m 11s
build (arm64, aarch64-linux-gnu-gcc, g++-aarch64-linux-gnu)	1m 43s
cleanup-runs	8s
install-tparse	12s
test-cosmovisor	2m 38s
split-test-files	15s
tests (00)	3m 58s
test-race (00)	4m 9s
tests (01)	4m 47s
test-race (01)	3m 21s
tests (02)	5m 3s
test-race (02)	2m 0s
test-race (03)	2m 29s
tests (03)	3m 42s
upload-coverage-report	26s
	36m 2s

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