Support zoned datetime feature type

**Is your feature request related to a problem? Please describe.**
Need to support timestamp with zone

**Describe the solution you'd like**
Have a new date timestamp type that stores and retrieves zone info as well as timestamp

**Describe alternatives you've considered**
Store these separately in two features but increases latency and complexity on read and write

**Additional context**
Similar to ZonedDateTime in java

The issue names no files, tests, or entry points. Start by locating the existing timestamp feature type and its storage and retrieval paths, then define how zone information should be preserved and verify that a zoned timestamp round-trips correctly.

Written by the indexing model from the issue text.