Include v1 Operator API protos in generated JAR and python packages.

For V1 API support, the build file that generates Java protos wrapper as of now includes only executor and scheduler. (https://github.com/apache/mesos/blob/master/src/Makefile.am#L334)

To support operator HTTP API, we also need to generate java protos for additional proto definitions like quota, maintenance etc., These java definition files will be used by a standard Rest client when using the straight HTTP API.