[parquet-protobuf] Use maven protoc plugin

[asfimport]

Currently the build of parquet-protobuf requires protoc to be installed in your environment. By using maven protoc plugin, we can have a build independent of the environment (no need to install protoc), and more easy to change the version of protoc.

Reporter: Qinghui Xu / @qinghui-xu
Assignee: Nándor Kollár / @nandorKollar

Related issues:

• Remove protobuf install in travis build (is required by)

PRs and other links:

• GitHub Pull Request #506

_{Note: This issue was originally created as PARQUET-1280. Please see the migration documentation for further details.}

[asfimport]

Lukas Nalezenec / @lukasnalezenec:
Good idea, we planned to use some maven protobuf plugin.