Fix #4172: Expose ride-type changing capability in UI

This also allows changing ride type in multiplayer games. Very crashy.

src/rct2/S6Importer.cpp

@@ -512,6 +512,7 @@ extern "C"
         gCheatsNeverendingMarketing = SDL_ReadU8(rw) != 0;
         gCheatsFreezeClimate = SDL_ReadU8(rw) != 0;
         gCheatsDisablePlantAging = SDL_ReadU8(rw) != 0;
+        gCheatsAllowArbitraryRideTypeChanges = SDL_ReadU8(rw) != 0;
 
         gLastAutoSaveTick = SDL_GetTicks();
         return 1;