[Java] Avro adapter implement Array/Map/Fixed type

[asfimport]

Support Array/Map/Fixed type in avro adapter.

Reporter: Ji Liu / @tianchen92
Assignee: Ji Liu / @tianchen92

PRs and other links:

• GitHub Pull Request #5099

_{Note: This issue was originally created as ARROW-6265. Please see the migration documentation for further details.}

[asfimport]

Micah Kornfield / @emkornfield:
Issue resolved by pull request 5099
#5099