[Doc] Add implementation status / matrix

[asfimport]

In Apache Arrow we have a documentation page listed the feature status for various implementations of Arrow: https://arrow.apache.org/docs/status.html

It could be nice to have a similar page for the main Parquet implementations (at least Java, C++, Rust).

The main downside is that it needs to be kept up to date.

Reporter: Antoine Pitrou / @pitrou

PRs and other links:

• GitHub Pull Request #34

_{Note: This issue was originally created as PARQUET-2310. Please see the migration documentation for further details.}