Migrate to cosmos sdk v0.41

[prestwich]

http://docs.cosmos.network/v0.41/migrations/app_and_modules.html

• Makefile step to build protobuf
• Messages into protobuf messages
• Queries into protobuf messages
• Message services
• Query services
• register the services
• remove amino codec
• update keeper with new codec marshaler
• update CLI
• remove alias file (refactor: delete alias file #138)
• remove rest endpoints ( ? )

[prestwich]

also check the Building Modules guide

[prestwich]

Old context:
Msg -> Handler
Query -> Querier

New context
Msg and Query are protobuf messages
Handler and Querier are gRPC services

[ewilz]

I can take a look at the codec stuff