Take care of MISRA and vera++ concerns

Maybe a thrown error isn't displayed: https://trac.cppcheck.net/ticket/5746

- Improved the overall look of the page
- Coverage generation using lcov and gcov
- Using less gitlab server page by removing interjob artifact generation

Fix blunder with xargs using python3.6 instead of python3

Remove useless call to cat

Change color of suppressed rule display

Revert "Change color of suppressed rule display"

This reverts commit 28e342e5ecbf914f04cca166781872e740d741de.

Add rule suppression functionality; just pass , do a general refactor to comply with PEP8 and get rid of most of the ugly code

Change the exit() statements to return; let's see if this is going to work because last time it didn't

Change shebang line to python3.6

Whoops

Attempt #2 at fixing gitlab

Attempt at fixing gitlab build #3: damn symlinks

Test commit for Python version

Change variable and function names to be more pythonic

Replace the ugly ANSI escapes with more readable, reusable strings

Pad the resulting strings for readability

Close the file after reading its lines

Delete a redundant loop in the parser code, credits to @dimst23

Fix comments to foolow Python conventions

Comment fixing vol. 2

Encapsulate the 2 functions into a class

Fix various blunders with the class encapsulation

Finalize pipeline scripts, waiting for review

Fix pipeline passing on GitLab CI when it should fail

Finish report pre-processing

Commit before full final test of pipeline

Add back runner tags

Fix permissions for bash script

Lock the addon files to this specific commit in order to avoid breaking stuff if cppcheck updates without prior creation of a package by Debian

Attempt to fix the segfaults that showed up

Fix escape codes and a syntax error in the for-loops

Add a line feed to `do` so that Bash stops whining

Update ci/cppcheck.sh

Fix segfaults, attempt #2

Update cppcheck to version 1.86-1

Fix the for loops

Add `helit` tag to run on local CI