fix(logging): fix proto copy

[busunkim96]

Logging's synth.py wasn't moving the protos over to the right place. It looks like the 'correct' set were getting copied into a deeper directory.

This PR also adds toctrees so the v1 and v2 docs are split.

See the generated docs here.

There's a new type google.cloud.logging_v2.types.BigQueryOptions that the Logging team was asking for. Do I need to modify the v1 client to make it available there?

[tseaver]

Can't note these issues inline:

• Shouldn't the logging/google/cloud/logging_v2/proto/cloud/logging_v2/proto/ directory be removed altogether?
• Why does the PR delete logging/google/cloud/logging_v2/proto/log_entry.proto / logging/google/cloud/logging_v2/proto/log_severity.proto / logging/google/cloud/logging_v2/proto/logging.proto logging/google/cloud/logging_v2/proto/logging_config.proto / logging/google/cloud/logging_v2/proto/logging_metrics.proto? That is where they are supposed to be, I think, and we are retaining the equivalent _pb2.py files.

[busunkim96]

Thank you for the review!

Shouldn't the logging/google/cloud/logging_v2/proto/cloud/logging_v2/proto/ directory be removed altogether?

It's gone as far as I can tell.

Why does the PR delete logging/google/cloud/logging_v2/proto/log_entry.proto / logging/google/cloud/logging_v2/proto/log_severity.proto / logging/google/cloud/logging_v2/proto/logging.proto logging/google/cloud/logging_v2/proto/logging_config.proto / logging/google/cloud/logging_v2/proto/logging_metrics.proto? That is where they are supposed to be, I think, and we are retaining the equivalent _pb2.py files.

Re-added.

[tseaver]

@busunkim96

Shouldn't the logging/google/cloud/logging_v2/proto/cloud/logging_v2/proto/ directory be removed altogether?

It's gone as far as I can tell.

It still contains all the _pb2.py files, as well as __init__py. Oops, that is the directory which is supposed to contain those files.