VACMS-11082: Investigate gathering line-count metrics. (#11923)

* VACMS-11082: Investigate gathering line-count metrics.

* Add metrics.

* Count and report hook implementations as a separate metric.

* Record .module file line counts.

* Simplifies string processing a bit.

* Work on string templating...

* debug mode

* Fix delimiter causing a non-zero exit code for `read` command.

* Better fix and comments.

* Set output in a different way.

* Fix typo.

Author: ndouglas