Support Devnet

[GrassRootsCrypto]

Description

Add the ability to support a DevNet, as defined here: https://docs.thorchain.org/thornodes/developing

The first requirement is the Rujira Devnet created by Defiant Labs but more could exist.
There needs to be a way to support multiple envs.

Current URLs for Defiant Labs / Bryan Labs
domain changed: defiantlabs.net > bryanlabs.net
added check proto h2 to all grpc end points, needed for HA proxy termination
added kujira endpoints, per request.

🌐 API Endpoints
HTTP:
http://thornode-devnet-api.bryanlabs.net:80
http://kujira-api.bryanlabs.net:80
HTTPS:
https://thornode-devnet-api.bryanlabs.net:443
https://kujira-api.bryanlabs.net:443

🛠️ GRPC Endpoints
HTTP (plaintext):
grpcurl -plaintext thornode-devnet-grpc.bryanlabs.net:80 list
grpcurl -plaintext kujira-grpc.bryanlabs.net:80 list
HTTPS (secure):
grpcurl thornode-devnet-grpc.bryanlabs.net:443 list
grpcurl kujira-grpc.bryanlabs.net:443 list

⚙️ RPC Endpoints
HTTP:
http://thornode-devnet-rpc.bryanlabs.net:443
http://kujira-rpc.bryanlabs.net:443

[Thorian1te]

needs to be supported on xchainjs first