Cult Overhaul

Cult is awful, so let's try to improve it. Idea by KorPhaeron. I also
took some inspiration from adrix89's sacrifice cult, so credits to him.
Also thanks a lot specially to MrPerson and Iamgoofball for helping
me brainstorm this, and Joan for the sprites for the summoning orb,
the large nar-sie shell, and the new cult antag hud.

Basically, we remove conversion, and turn cult into a magic version of
nuke, with a small team of stealth elite cultists that have to build a
base in the station and sacrifice people in order to build an army of
constructs and get materials to eventually summon Nar-Sie.

Stun talismans and conversion are gone. Nar-Sie is now the only
objective. Sacrifice runes now provide summoning orbs, which you can use
to drop a large shell. Insert enough orbs in the shell and you trigger a
Delta. Defend the shell for 3 minutes and Nar-sie will arise. This shell
is bombproof and singularityproof. It may be summoned up to three times
if destroyed, but you will have to start from the beginning sac-wise.

Runes are now RNG. Each cultist only gets 50% of the runes. Inspiration
is basically The Binding of Isaac here (thank you MrPerson for this!).
Furthermore, many old runes were merged/removed and other new ones were
added. Almost all were massively rebalanced. Cult now also has a
stealthy ritual dagger with high bleeding and throw effects.

code/modules/power/singularity/singularity.dm

@@ -246,7 +246,7 @@
 
 
 /obj/singularity/proc/consume(atom/A)
-	var/gain = A.singularity_act(current_size)
+	var/gain = A.singularity_act(current_size, src)
 	src.energy += gain
 	if(istype(A, /obj/machinery/power/supermatter_shard) && !consumedSupermatter)
 		desc = "[initial(desc)] It glows fiercely with inner fire."