ON1 Photo Raw

Tested on Linux Mint, with Lutris 0.5.22. Tested with Wine 11 and Wine GE-Proton10-34 (get it via ProtonUp-Qt). I'm unable to set the Wine version in this installer script submission.

The installer links to WinMetadata and .NET installer are provided. The .NET offline installer is important, without it ON1 may install, but will appear blank. If you see dialogs asking whether you'd like to download dotnet48, skip those.

On Omarchy, I ran into three more issues and documented the fixes, in case they're useful for the post or for readers on other distros: https://gist.github.com/elainerjackson/57565ea5ac730c0f3435e02e67ee23a7

*Lutris/umu built the prefix on the latest GE-Proton (11-11) rather than 10-34 until I pinned `PROTONPATH`.
*The .NET 4.8 installer reported "already installed" (Wine Mono's 4.8.1 registry keys, then the Windows 10 19045 OS-build check). `winetricks remove_mono win7` before the install fixed it.
ON1 exited seconds after launch because `Qt6Core.dll` imports an unversioned `icuuc.dll` and Proton only ships `icuuc68.dll`. Copying Wine's `icu.dll` in as `icuuc.dll` fixed it.