Add measurement of compression/decompression time

As we compress/decompress a full page at a time, it is easy to measure with negligible overhead.
We should measure the time spent in compressing/decompressing and put that in a hadoop counter.
This way we have visibility in time spend compressing/decompressing.

**Reporter**: [Julien Le Dem](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=julienledem) / @julienledem

_{**Note**: *This issue was originally created as [PARQUET-219](https://issues.apache.org/jira/browse/PARQUET-219). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}