Normalize ci utility (eg etstool.py) across ETS

The CI utilities used by ETS projects to make development and testing easy have grown significantly different over the course of time. A big problem is the fact that some projects call the utility `etstool` whereas in other cases it is called `edmtool` or it is the `ci` package or it is `ci/edmtool`. Additionally, the functionality within the utilities also differs as changes made to one utility haven't been carried over to the utilities used by other ETS projects. We need to try to settle on a common utility module and update each utility accordingly.