Convert legacy.federation.v1beta1, module.v1beta1 to module.v1beta1, module.v1

[bufdev]

This PR does a bunch of moves and updates:

• Moves buf.registry.module.v1beta1 to buf.registry.module.v1.
• Moves buf.registry.legacy.federation.v1beta1 to buf.registry.module.v1beta1.
• Copies the types not in the old buf.registry.legacy.federation.v1beta1 into the new buf.registry.module.v1beta1.
• Moves buf.registry.owner.v1beta1 to buf.registry.owner.v1.

The rest of the updates are referenced in terms of their new package location, not old package location:

• Removes registry from v1beta1.ResourceRef, instead creating a wrapper GetGraphRequest.ResourceRef message that contains a registry field. We only need/want registry to be added to ResourceRef for this specific RPC.
• Removes v1_buf_yaml_file, v1_buf_lock_file from both v1beta1 and v1 UploadRequests.
• Removes digest_type for all v1 RPC request messages.
• Removes DIGEST_TYPE_B4 in v1.
• Removes v1_buf_yaml_file, v1_buf_lock_file from v1 DownloadResponse.
• Removes the required market for v1_buf_yaml_file from v1beta1 DownloadResponse.

The result is a v1beta1 module API that allows for federation and B4 digests, and a cleaned-up v1 module API that only has what we need going forward.

Replaces #73.

[bufdev]

For quick reference: https://github.com/bufbuild/registry-proto/tree/v1beta1-v1/buf/registry/module