Fix pressure interpolation at face bug and other bugs

[blaisb]

Description

The new deal.II changes (more asserts) identified a nasty bug we had. The wong fe_values was being used to gather the pressure at the faces. Instead of the fe_face_values it was the fe_values. Consequently, I am really not sure what was happening there. This is now fixed.

Furthermore, there were also instances where the quadrature of the fluid dynamics in the VOF solver was not initialized with the right number of points. This has been fixed also.

Testing

Tests that were breaking in debug should work just fine now in debug.

Code related list:

• All in-code documentation related to this PR is up to date (Doxygen format)
• Lethe documentation is up to date
• Fix has unit test(s) (preferred) or application test(s), and restart files are in the generator folder
• The branch is rebased onto master
• Changelog (CHANGELOG.md) is up to date
• Code is indented with indent-all and .prm files (examples and tests) with prm-indent

Pull request related list:

• Labels are applied
• There are at least 2 reviewers (or 1 if small feature) excluding the responsible for the merge
• If this PR closes an issue or is related to a project, it is linked in the "Projects" or "Development" section
• If the fix is temporary, an issue is opened
• The PR description is cleaned and ready for merge