Removes click cooldowns almost everywhere.

Still have: doors, windoors, cameras, windows, grilles, blobs, resisting, alien stuff, mechas, spray bottles.
Setting changeNextMove is now responsibility of the item being attacked.
Adds a config option to eliminate click cooldowns completely. Intended to be used by devs.

code/controllers/configuration.dm

@@ -126,6 +126,7 @@ var/list/gamemode_cache = list()
 
 	var/welder_vision = 1
 	var/generate_asteroid = 0
+	var/no_click_cooldown = 0
 
 	//Used for modifying movement speed for mobs.
 	//Unversal modifiers
@@ -316,6 +317,9 @@ var/list/gamemode_cache = list()
 				if ("generate_asteroid")
 					config.generate_asteroid = 1
 
+				if ("no_click_cooldown")
+					config.no_click_cooldown = 1
+
 				if("allow_admin_ooccolor")
 					config.allow_admin_ooccolor = 1