Update Friday - 2019.05.03

Feature

* item, enemy, bullet entity add highlight

* player, enemy, item add shadow

* add barrier for creating environment shadow

* add torch decoration

Enhancement

* enable linear color space

* player move add walk smoke

* player use new idle and walk animation

* make item picked effect obviously

Bugfix

* fix lighting props by making render layer use less depth space

* fix character anime height offset

* make access player entity faster

* remove entity iterator interface overhead

* adjust ambient light and point light intensity

* fix render layer of enemy marker

* remove point light in tunnel area

* fix player walking animation laggy under low fps

* generate props on bottom of area

* item stop float after trace player

* fix player regeneration position

* fix camera setting for enemy arrow

* fix PostProcessing (PPP) setting for wired circle on screen and motion blur