Disable the NumericLiterals cop for rubocop

- Disable the NumericLiterals cop in the .rubocop.yml file - this cop
  enforces an underscore '_' every 3 characters of an integer. This doesn't
  make much sense in our use case and reduces readability. Especially for port
  numbers.

Change-Id: I0eba348b7849f5fce9d758cdd44b79f589a3d4d4
Addresses: blueprint rubocop-integer
Add notification_topic attributes for all services

These will be added to service config templates in subsequent patches.

Change-Id: I19b274d641f50e3c176bd038505140ffe92038c6
Merge "Add notification_topic attributes for all services"