Adds labels to the following:
1. api baymodel attribute
2. conductor template definitions and entrypoints
3. a new column to the baymodel db
4. objects. Note: Updates baymodel object version
5. Tests
Partially-Implements: blueprint extend-api-network-attributes
Partially-Implements: blueprint extend-baymodel-net-attributes
Partially-Implements: blueprint conductor-template-net-update
Change-Id: I49f9c7df28f806cdedb3a382b1cb41bc48ff4e90