fix memory #562

fix memory leak for AnimationSubGeometry, ParticleAnimationSe
little fix
fix import
fix ram leak

https://github.com/away3d/away3d-core-fp11/issues/555
+
update epsilon to be equivalent to the inverse of distance for both
point and directional light shadow maps
fix for epsilon update using cascadeshadowmaps
small optimisation in cascade method
added default range value to softshadowmapmethod constructor
Re-worked getContainerBounds method to work with translations and rotations of nested containers and entities. Also added bounds for segment sets
minor fix for getEntitiesCollision()
Geomutils: updated limit indices.
Mirror: restored recenter option
CylinderGeometry: Fix inverted lightin
Fix to Bounds util getContainerBounds
allow application control dispose
Revert "allow application control dispose"

This reverts commit 382eccaa52af335959831741bd9408c689f1cb98.
CylinderGeometry: fix inverted lighting in combination with shadowMethods
Another fix to the Bounds util getContainerBounds method
Fix #458