Revert "further optimizations for onScreen() + better memory management for FlxTrail"

This reverts commit 59759015a76f8d362f753de3b7d999b314031e3c.
Cleaning up optimizations made to onScreen call in FlxSprite.
Removing silly and unnecessary return in sinCosGenerator function in FlxAngle.
Small optimization / code cleanup in FlxTypedGroup.
Optimizing setPosition call in FlxSpriteGroup - also removing spaces instead of tabs - WHO USES SPACES INSTEAD OF TABS?!
restored FlxTypedGroup optimizations
Remove calacAABB() call from FlxParticle.update()
Remove FlxMisc.getTicks(), rename FlxG.game.mark to ticks
Improve FlxSpriteUtil.screenCenter() and FlxSpriteUtil in general
improvements for FlxTrail
using Math.max() for FlxSprite's onScreen() method
added isColored property instead of isColored() method
FlxRandom: Improve intRanged()
FlxObject: Improve docs of velocity, acceleration, angularVelocity and angularAcceleration
FlxObject: Move Pathing constants into FlxPath
FlxPreloader: Update asset paths
removed GlitchFX for some time (need to update it later)
caching sin/cos
forgot to upload FlxObject
tiny optimization for FlxSprite draw()