CosmCs ignite plugin

[lxgr-linux]

For grant purposes it would be a good idea to create an ignite plugin that:

• Generates clients using https://github.com/DecentralCardGame/protoc-gen-cosmosCsharp
• Generates queries
• Generates a client combining all that
• Generates a unity3D compatible client

In the future we could incorporate this into ignite cli via a PR
@patrickwieth, thoughts?

[lxgr-linux]

This should become way easier now, since I cleaned up code generation and removed dirty hacks.

[patrickwieth]

nice