Fix the encoding test functions from Hex to Decimal and Octal.
Translated using Weblate.
Merge remote-tracking branch 'origin/master'
Refresh the declarations of icons, their filenames their sizes and remove useless icons.
Workspace Conf: in the project list, add their descriptions if available
Add debug message to confirm the execution of the field split controller.
Fix a small bug which prevented the correct init of the SplitFieldController
Upgrade the split field MVC.

The objective is to provide a more efficient GUI to split a field in two using
a Scale widget.
Few simplifications of the Split Field MVC source code.
Merge branch 'master' of dev.netzob.org:netzob
Remove useless icon.
Remove unused 22x22 icons
New version of the create-variable icon.
Update variable-table.png and partitioning-freeze.png icons and add SVGs.
New version of the move to symbol icon.
Upgrade partitioning icons.
Upgrade the unselect-all-symbol icon.
Add a 'Copyrights' section in the AUTHORS.txt file.

This section lists all files that were imported (external libs, icons, etc.). For each file, the copyright holders and the licence is mentioned.
QA: fix PEP8 errors