SS Conversion: Atoms, Machines, n' Mobs

This converts the machine and mob processes to the SMC. Additionally, it
adds the Atom subsystem, which handles all Initialize() calls in place
of the old gameticker. Due to incompatibility with our atmospherics
(FUCK OUR ATMOSPHERICS FOR FUCKING EVER JESUS CHRIST WHO THE FUCK MADE
THIS PIECE OF GODDAMN SHIT) atmospherics machines do not use
Initialize() as they should, instead opting for a custom atmos_init
proc that the air controller handles.

code/modules/admin/verbs/atmosdebug.dm

@@ -51,7 +51,7 @@
 		return
 	feedback_add_details("admin_verb","CPOW") //If you are copy-pasting this, ensure the 2nd parameter is unique to the new proc!
 
-	for(var/datum/powernet/PN in powernets)
+	for(var/datum/powernet/PN in SSmachines.powernets)
 		if(!PN.nodes || !PN.nodes.len)
 			if(PN.cables && (PN.cables.len > 1))
 				var/obj/structure/cable/C = PN.cables[1]

code/modules/admin/verbs/debug.dm

@@ -387,7 +387,7 @@ But you can call procs that are of type /mob/living/carbon/human/proc/ for that
 	if(!check_rights(R_DEBUG))
 		return
 
-	makepowernets()
+	SSmachines.makepowernets()
 	log_admin("[key_name(src)] has remade the powernet. makepowernets() called.")
 	message_admins("[key_name_admin(src)] has remade the powernets. makepowernets() called.", 0)
 	feedback_add_details("admin_verb","MPWN") //If you are copy-pasting this, ensure the 2nd parameter is unique to the new proc!