feat: replace JS SDK generator with ts-proto generator

[jonas-jonas]

This replaces the existing generators with https://github.com/stephenh/ts-proto, which can generate more user friendly code. It also allows generating client for the nice-grpc framework.

BREAKING CHANGE: The structure of the JS SDK had to be changed to match the new generated code.

Related issue(s)

Checklist

• I have read the contributing guidelines.
• I have referenced an issue containing the design document if my change
  introduces a new feature.
• I am following the
  contributing code guidelines.
• I have read the security policy.
• I confirm that this pull request does not address a security
  vulnerability. If this pull request addresses a security vulnerability, I
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  the changes.
• I have added tests that prove my fix is effective or that my feature
  works.
• I have added or changed the documentation.

Further Comments

[aeneasr]

rename to

@ory/client-grpc

[aeneasr]

I'm closing these PRs as we never got it to work. This problem hasn't come up in the past few months so I think it's on the bench for now :D