refractor

Base class also supprot drawFrame now
move Drop up to layer20
rename Base.data.t -> Base.data.text
refractor
[fix] init STORY.anim before STORY.state.set
GAME.init -> GAME.start
[fix] set('dying') -> setWith('dying')
minor adjustment
use Date.now() to replace getTick
[fix] bk.jpg is actually a png file
rewording
new function UTIL.getAliveObj
canvas in RES element support more transform
add animation for bullets
minor adjustments for Dannmaku & Bullet
[fix] hittest between Player & Drop
minor changes for autocollected drops
refractor
Onmyou dama added
oumyou texture updated