Also introduce gapic_yaml for java clients to override default LRO configuration (which has too way too long timeouts).
Also cleanup regenerate other files (grpc_service_config and service yaml)
* fix: Move compute_small protos under its own directory
This is needed to fix API index.
Also removed gapic_yaml file, as it is not needed anymore.
* add README.md
* fix typos
* fix typos