[WINDOWSCODECS] Sync with Wine Staging 4.0. CORE-15682
[WINDOWSCODECS] Sync with Wine Staging 3.9. CORE-14656
[WINDOWSCODECS] Sync with Wine Staging 3.3. CORE-14434
[WINDOWSCODECS] Sync with Wine 3.0. CORE-14225
Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.