Event stuff, but also Squeak component (#7285)

code/datums/components/_component.dm

@@ -208,6 +208,13 @@
 
 	signal_enabled = TRUE
 
+//CHOMPAdd start
+/// Registers multiple signals to the same proc.
+/datum/proc/RegisterSignals(datum/target, list/signal_types, proctype, override = FALSE)
+	for (var/signal_type in signal_types)
+		RegisterSignal(target, signal_type, proctype, override)
+//CHOMPAdd end
+
 /**
   * Stop listening to a given signal from target
   *