Changes

- Add stage change animation

- Add spell skill & Block Install skill effect

- Add camera shake effect  when damaged

Fixed bugs

-  Skills are duplicated when the game is end during battle and loaded.

- 'Saw blade' and 'Engineer's gift box's  synergy problem

- Bugs with multiple overlapping 'Slanted shield' effects

- Problems where the effect of the 'Mask of Endian chief' applies to skills other than shooting skills