Overhaul UI: Instrument view: add a checkbox for the user to be able to enable and disable the analyzer & polarizer panel

See merge request !376

Add checkbox to polarizer and analyzer form for (de)activating the polarizer and analyzer of an instrument

Use the Windows 10 VM

See merge request !370

When a Powershell script is executed in the CI/CD, the error codes do not
propagate properly to GitLab runner. To prevent that, the simplest way is to include everything in the GitLab CI/CD script.

CMake patches; rename Unix executable to lowercase "bornagain"

See merge request !375

Color bar fixed to align with the height of the heatmaps

See merge request !374

Fix crash on import of 1D data

See merge request !373

Reorg dirs: rename some files

See merge request !371

Rafactor model: Rename some functions to be consistent with other names

See merge request !369

Qt 5.15.0 LTS is installed on the Win10 VM. A directory symlink is made to
refer to the current version folder.

rm some code duplication from examples

See merge request !366

clang-format

See merge request !368