Adapt the GitLab CI/CD for the new MS-Windows VM
The Windows part of the GitLab CI/CD is modified to run on the current MS-Windows build machines (including the Win10 VM).
A Powershell script is added that can be executed under MS-Windows to perform the build steps. The script can be executed in Windows CLI, independent from the GitLab machinery. This is useful for the offline debugging and testing of the build process.
Note that ccache is discarded, as it seemingly does not improve compilation time.
The CI/CD pipeline is tested on both Windows build machines.
Edited by Ammar Nejati