Exosuit Crash, Narrator and armor tweaks (#846)

changes:

rscadd: "Added a Crash ability to exosuits. Uses the suit's mass to attempt to break through obstacles, sustaining some damage in the process."
tweak: "Buffed Ripley exosuit armor values significantly, and durand armour slightly. Firefighter ripley also buffed, but is slower than base ripley."
tweak: "Greatly increased the health values of some high-security airlocks."
bugfix: "Airlocks, tables, girders and windows now behave a bit more consistently when exploded. All airlocks are a bit more resistant to explosions when bolted."
rscadd: "Added some more narrator voices to exosuits."
rscadd: "Added some warning sounds for exosuits when low on power, or badly damaged."
tweak: "The power drain of EMPs used on exosuits no longer scales with the cell. A better power cell can now survive more EMP hits. Drain level is a little lower for the starting cell."
tweak: "EMP damage against exosuits reduced by 20%"

code/modules/tables/tables.dm

@@ -51,6 +51,18 @@
 		visible_message("<span class='warning'>\The [src] breaks down!</span>")
 		return break_to_parts() // if we break and form shards, return them to the caller to do !FUN! things with
 
+
+/obj/structure/table/ex_act(severity)
+	switch(severity)
+		if(1.0)
+			qdel(src)
+			return
+		if(2.0)
+			take_damage(rand(100,400))
+		if(3.0)
+			take_damage(rand(50,150))
+
+
 /obj/structure/table/New()
 	..()
 	// One table per turf.