Code coverage

[awdeorio]

Measure code coverage of unit tests. Report coverage using a badge on the README.

[ianbtr]

You should be able to use Codecov for free. They make it quick and easy to put a badge in your README, too.

Here's an example of another repo that used Codecov with a C++ project, displays the badge, and automatically checks and shows the coverage delta on each pull request.

Stay awesome :)

- Ian