* Add c++ client/server example
* Elide feature_test

* Migrate builtin_test
* Migrate scalapb_test
* Migrate grpc_test
* Add initial proto_repository.bzl
* Vendor bazel-gazelle PR 1033
* YConfig parsing
* Update readme

Previously the mappings were not accouting for the case of being run
in an external workspace.  To fix that, it is necessary to thread in
the config.WorkDir property.  If we are running in a directory like
/.../external/foo, the output mappings become prefixed with
"external/foo/..."

This was an experiment within python prior to integration with the rules_python gazelle generator.

)

* Rename grpc:grpc-go:protoc-gen-go -> golang:protobuf:protoc-gen-go
* Introduce LanguageRuleConfig.Resolve directive
* Add list_repository_tools_srcs

* Gazelle apply
* Buildfier fixes

This change add a new repository rule that works like go_repository.  There is quite a bit of changes around rule resolution and dependency management.

* Initial ts_proto_library
* Rewrite with tsc action
* Add transitive support
* Add proto_ts_library.go
* Use genrule script instead of go_binary
* Initial proto_ts_library impl
* Update example with nestJs/gRPC
* Pass args to the tsc compile action
* Fix output file naming for protoc-gen-ts-proto
* Upgrade bazel-gazelle, add mergemappings test
* Migrate mappings (string_dict) -> output_mappings (string_list)
* Fix deps resolution for proto_java_library