Must modify the way to generate js codes from proto files

[taiki1frsh]

As the structure of the proto management of wasmd repository has changed, the current way to generate the js files from proto files don't work.
We have to modify (or possibly radically change the client structure).

cc: @mkXultra @Senna46

Specifically, gen-proto.sh, gen-openapi.sh requires raw dependent proto files (third-party protos) to generate ts files.
But, since the way to manage the dependent files changed, there's no longer third-party proto folder in wasmd.

So, have to change the way to manage dependent files in process to generate ts proto files in the both scripts.

[Senna46]

Seems to have been in 0.27.0 (doc version)

https://docs.cosmwasm.com/docs/1.0/getting-started/installation

https://github.com/CosmWasm/wasmd/tree/v0.27.0

When use this, the error occured

Error: Unexpected token in option: .get
    at onoption (/home/user/.npm/_npx/08926cdeed955aef/node_modules/protocol-buffers-schema/parse.js:347:15)
    at onrpc (/home/user/.npm/_npx/08926cdeed955aef/node_modules/protocol-buffers-schema/parse.js:517:17)
    at onservice (/home/user/.npm/_npx/08926cdeed955aef/node_modules/protocol-buffers-schema/parse.js:449:30)
    at Function.parse (/home/user/.npm/_npx/08926cdeed955aef/node_modules/protocol-buffers-schema/parse.js:596:30)
    at Object.parseSchema (/home/user/.npm/_npx/08926cdeed955aef/node_modules/pbjs/index.js:6:27)
    at Object.<anonymous> (/home/user/.npm/_npx/08926cdeed955aef/node_modules/pbjs/cli.js:21:24)
    at Module._compile (internal/modules/cjs/loader.js:1085:14)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
    at Module.load (internal/modules/cjs/loader.js:950:32)
    at Function.Module._load (internal/modules/cjs/loader.js:790:12)
/home/user/.npm/_npx/08926cdeed955aef/node_modules/protocol-buffers-schema/parse.js:347
        throw new Error('Unexpected token in option: ' + tokens[0])
        ^

[Senna46]

In https://github.com/cosmos-client/ununifi-ts, there are same errors.
@taiki1frsy @mkXultra Do you know anything about its error?