add logical type timestamp with timezone (per SQL)

[asfimport]

timestamp with timezone (per SQL)
timestamps are adjusted to UTC and stored as integers.
metadata in logical types PR:
See discussion here: #51 (comment)

Reporter: Julien Le Dem / @julienledem
Assignee: Julien Le Dem / @julienledem

Related issues:

• Release Parquet format 2.4.0 (depends upon)
• Update parquet.thrift from https://github.com/apache/parquet-format (is depended upon by)

PRs and other links:

• PR #51: Add new LogicalType structures to the format

_{Note: This issue was originally created as PARQUET-906. Please see the migration documentation for further details.}

[asfimport]

Ryan Blue / @rdblue:
Merged #51 with new logical type annotations.