* Refactor all instances of `majormods = true;` to route through G_SetGameModified, and catch a few spots I missed in the process.
* Make G_SetGameModified only console-print for major mods.
* Add amnesty to "major mod" detection while loading files with custom savedatas.
* Improved the console prints for command `isgamemodified`.

* Add missing vars highlightflags, recommendedflags, warningflags from Kart
* V_GetStringColormap() use vanilla behavior because Kart behavior glitches for us
* V_GetStringColormap() made non-static

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See merge request KartKrew/Kart!8

* Wrap behind-the-scenes `addfile/exec` contents in quotation marks to allow for files with spaces in them.

Bitch.