Add ability to inject a CA cert for use in grpcs and grpc-web

[jeromy-cannon]

need Solo and Solo-Charts to optional accept and apply CA cert for grpcs (HAProxy grpc TLS) and grpc-web (Envoy).

Need to be able to inject the CA certs, don’t have to do the self-signed or lets encrypt.

Note: we can sign the static CA cert and inject it and it is less work than all of the lets encrypt stuff we did for Mirror Node Explorer.

Tasks

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1. solo network deploy: the user should be able to have a CA certificate file on their file system and provide a flag with the value being the node alias, equal sign, the full path and name of the file for grpc TLS, e.g. ( --grpc-tls-cert node1=/Users/jeromy/node1-grpc.cert,node2=/Users/jeromy/node2-grpc.cert,node3=/Users/jeromy/node3-grpc.cert), with multiple node aliases separated by commas
2. solo network deploy: the user should be able to have a CA certificate file on their file system and provide a flag with the value being the node alias, equal sign, the full path and name of the file for grpc web TLS, e.g. ( --grpc-web-tls-cert node1=/Users/jeromy/node1-grpc-web.cert,node2=/Users/jeromy/node2-grpc-web.cert,node3=/Users/jeromy/node3-grpc-web.cert)
3. solo node add: the user should be able to have a CA certificate file on their file system and provide a flag with the value being the node alias, equal sign, the full path and name of the file for grpc TLS, e.g. ( --grpc-tls-cert node1=/Users/jeromy/node1-grpc.cert,node2=/Users/jeromy/node2-grpc.cert,node3=/Users/jeromy/node3-grpc.cert), with multiple node aliases separated by commas
4. solo node add: the user should be able to have a CA certificate file on their file system and provide a flag with the value being the node alias, equal sign, the full path and name of the file for grpc web TLS, e.g. ( --grpc-web-tls-cert node1=/Users/jeromy/node1-grpc-web.cert,node2=/Users/jeromy/node2-grpc-web.cert,node3=/Users/jeromy/node3-grpc-web.cert)
5. the certificates should be stored as Kubernetes secrets within the same namespace as the consensus nodes
6. the consensus nodes haproxy should leverage the appropriate certificate for the grpc TLS port
7. the consensus nodes envoy should leverage the appropriate certificate for the grpc web port

NOTE: platform_installer.ts copyGossipKeys() is an example of how to read files, generate the data, and then store it in K8s as a secret.