Lamps On Map

Basic functionality with updating lamps, refreshing colors, redraw mechanism and saving each 2000 ticks to global (to be removed).
WARNING: if you place new lamps while using this mode, wait 1-2 min before save/exit from game (to let saving mechanism iterate), or it wont save current state and after next game load mod will search for ALL lamps on entire world (on all surfaces) to collect them again (for future iteration and updating).