Feature: coverage info for apt-hook

[orndorffgrant]

Please describe the scenario where the new feature would be useful

For our continuous analysis of code coverage, we should include coverage of the apt-hook.

Describe the solution you'd like

Probably use lcov or similar to generate a coverage report for the apt-hook code.

Current behavior

We have some unit tests but no coverage information for the apt-hook.

[orndorffgrant]

And be sure to add this to the jenkins tiobe job after it exists.