Serialized descriptors for protoc plugin interface, used for
bootstrapping the protoc plugin

If needed, they can be regenerated with:

$ cd /path/to/google/protobuf
$ protoc -o descriptor.pb -Isrc src/google/protobuf/descriptor.proto
$ protoc -o plugin.pb -Isrc src/google/protobuf/compiler/plugin.proto
$ cd /path/to/google-protobuf-dynamic
$ perl scripts/make_plugin_interface.pl