[Java] Support additional Time metadata + vector value accessors

[asfimport]

This will account for metadata changes in ARROW-617

Reporter: Wes McKinney / @wesm
Assignee: Leif Mortenson / @leifwalsh

Related issues:

• Add integration tests for date and time types (blocks)
• [Java] Support additional Time metadata (depends upon)

_{Note: This issue was originally created as ARROW-663. Please see the migration documentation for further details.}

[asfimport]

Li Jin / @icexelloss:
I will take a shoot at this. It would great if someone familiar with the vector code and free maker provide me with some guidance and help.

[asfimport]

Wes McKinney / @wesm:
Resolved in f4fcb42 – note there is some follow up work to be done in ARROW-777