Modularize Almanac Binding transactions

Summary: Depends on D19320. Ref T13120. Ref T12414. Move transactions for Almanac Bindings to ModularTransactions.

Test Plan:

• Created a new binding.
• Tried to create a duplicate binding, got an error.
• Edited a binding to rebind it to a different device.
• Disabled and enabled bindings.
• Grepped for AlmanacBindingTransaction:: constants.

When a binding is created, it currently renders a bad "changed the interface from ??? to X" transaction. This is because creation isn't currently using EditEngine. I plan to swap it shortly, which will turn this into a real "Create" transaction and fix the issue.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13120, T12414

Differential Revision: https://secure.phabricator.com/D19321