Get LCOV coverage report for Python code

[abitrolly]

Just for fun, because it is beautiful.

The current output from coverage.py - https://yakshaveinc.github.io/python/python_py.html

Starting points.

• Option to output lcov.info format? coveragepy/coveragepy#587
• https://www.systutorials.com/docs/linux/man/1-geninfo/#lbAF
• How to interpret the format of lcov output file? linux-test-project/lcov#113