Modularize Almanac Network transactions
Summary: Depends on D19321. Ref T13120. Ref T12414. Move transactions for Almanac Networks (just "name") to ModularTransactions.
Test Plan:
- Created a new network.
- Renamed a network.
- Tried to create a network with no name (got an error).
- Grepped for AlmanacNetworkTransaction::.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13120, T12414
Differential Revision: https://secure.phabricator.com/D19322