Fixes Initial Frenzy

Newly spawned vampires get 30 units of blood to use hypnotise with. This also fixes them gaining frenzy right off the bat.

code/game/gamemodes/vampire/vampire_helpers.dm

@@ -6,6 +6,8 @@
 	if (!mind.vampire)
 		mind.vampire = new /datum/vampire()
 
+	mind.vampire.blood_usable += 30
+
 	for (var/datum/power/vampire/P in vampirepowers)
 		if (!P.blood_cost)
 			if (!(P in mind.vampire.purchased_powers))

code/game/gamemodes/vampire/vampire_powers.dm

@@ -791,6 +791,7 @@
 	T << "<span class='danger'>You awaken. Moments ago, you were dead, your conciousness still forced stuck inside your body. Now you live. You feel different, a strange, dark force now present within you. You have an insatiable desire to drain the blood of mortals, and to grow in power.</span>"
 	src << "<span class='warning'>You have corrupted another mortal with the taint of the Veil. Beware: they will awaken hungry and maddened; not bound to any master.</span>"
 
+	T.mind.vampire.blood_usable = 0
 	T.mind.vampire.frenzy = 250
 	T.vampire_check_frenzy()