Merge remote-tracking branch 'upstream/master' into master-build

* upstream/master:
  WinGui: Add missing .ass extension to subtitle import
  WinGui: Clean-up the preset archive code.  New filename format for archive files is presets.json.version.archive to make it easier to identify what preset version it came from. i.e.  presets.json.36_0_0.archive
  WinGui: Improvements for #2090 - Support upgrading presets from 1.2.2 and later. Preset importer required some fixes to allow this to operate. - Changed Import Presets function to ignore built-in presets when the user tries to import the presets.json file. Cuts down on the volume of errors they'll get doing so.
2 jobs for master-build in 64 minutes and 9 seconds (queued for 2 minutes and 33 seconds)
Status Job ID Name Coverage
passed #211159128


  Build Gui
passed #211159129
windows msbuild