Update development disable command to pull service by default (#110)
* Currently when service is disabled in development mode if a user does not delete it or pull it manually, the image will remain to be the image built by development mode potentially.
* Pulling the image after disabling will mean that the service is reloaded as the one held in ECR
* Added the `-P` to the disable command to maintain current behaviour if desired
* Reorganied `disable.spec.ts` mocks to use automatic mocks and not manual mock
* Add a method which can be overidden in children of AbstractStateModificationCommand so that actions can occur after the hook has successfully run
