R1:4bce3fc8e688

Modularize Almanac property transactions

Summary:
Depends on D19329. Ref T13120. Ref T12414. Recent changes have mostly modularized Almanac transactions, but the "property" transactions remained written in an older style with the logic on the Editor/Transaction classes.

This moves them to modern modular transactions. These end up being a little bit copy-pastey, but it doesn't feel too terribly bad.

Test Plan: Created, edited, and deleted properties on services, devices and bindings. Grepped for removed…