Coverage

[marcusmueller]

This adds support for Coverage reporting.

Requirements:

• gcc or clang
• gcov
• gcovr

Usage:

mkdir build-coverage && cd build-coverage
cmake -DCMAKE_BUILD_TYPE=Coverage ..
make -j
make coverage
firefox coverage/index.html

Demo of the result on my oldish desktop machine: https://doppler.inpha.se/coverage/