Misc. RK Skill Cast Times / Re-Use Delay Fixes per Balance Patch

- Updated RK Hundred Spear's Variable Cast time.
- Updated skill re-use delay of Dragon Howling (from 60s to 10s)
- Updated Dragon Breath's cast times (Variable & Fixed Cast Time)

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@16507 54d463be-8e91-2dee-dedb-b68131a5f0ec

db/re/skill_cast_db.txt

@@ -1080,16 +1080,16 @@
 //-- RK_DEATHBOUND
 2003,0,2000,0,2000,0,3000,0
 //-- RK_HUNDREDSPEAR
-2004,1000,500,0,0,0,0,0
+2004,1100:1000:900:800:700:600:500:400:300:200:100,500,0,0,0,3000,0
 //-- RK_WINDCUTTER //CHECK duration 1
 2005,0,0,0,0,0,2000,0
 //-- RK_IGNITIONBREAK
 2006,1000,0,0,0,0,2000,0
 
 //-- RK_DRAGONBREATH //CHECK duration 1 burning
-2008,500:500:500:1500:1500:1500:2000:2000:2500:2500,2000,0,5000,0,0,0
+2008,0:0:0:1000:1000:1000:1500:1500:2000:2000,2000,0,5000,0,0,500
 //-- RK_DRAGONHOWLING
-2009,0,0,0,15000,0,60000,0
+2009,0,0,0,15000,0,10000,0
 
 //-- RK_MILLENNIUMSHIELD //CHECK duration 2
 2011,0,1000,0,300000,0,60000,0