Added a Memory handler, currently holds a static templated method that removes all memory from a vector of pointers

Added StimPack.cpp and changed ALL positions passed throughout the program are now vectors, no float x,y

WorldMatrix is now made up of Tiles, this means that you can change the state/damage on individual world ties

Rework of visible entitytity system, it's now stored in the Entity.cpp and nothing will happen if it's not set to true