- moved player color sets and pain flashes into global variables.

There's simply never enough of them and they are used far too infrequently to justify the hassle of tagging along two TMaps per class.
For what they provide, single global lists that handle all player classes at once are fully sufficient.

src/d_main.cpp

@@ -2707,6 +2707,8 @@ void D_DoomMain (void)
 
 		// delete all data that cannot be left until reinitialization
 		V_ClearFonts();					// must clear global font pointers
+		ColorSets.Clear();
+		PainFlashes.Clear();
 		R_DeinitTranslationTables();	// some tables are initialized from outside the translation code.
 		gameinfo.~gameinfo_t();
 		new (&gameinfo) gameinfo_t;		// Reset gameinfo