Download protobuf-java-format-shaded JAR file with all dependencies

This is a wrapper around `com.googlecode.protobuf-java-format:protobuf-java-format` that rewrites the bytecode to use `org.apache.hadoop.hbase.shaded.com.google.protobuf` instead of plain `com.google.protobuf` for compatibility with `hbase-shaded-client`. Classes using shaded protobufs are exposed in `com.google.bigtable.hbase.mirroring.shaded.com.googlecode.protobuf.format` package.