Renamed the asset system. Moved third party libraries from include to source/3rdParty.  Started on AssetSystem and RectangleShapes.  Need to move code from AssetSystem into Rectangle shapes.  Current AssetSystem only loads assets for use by other Systems.  GameObject system should maintain the game object container.  AssetSystem needs IO system to scan asset directory.  AssetSystem needs to handle loading images, sounds, and fonts, before shapes, sprites, text, and buffers.  Assetsystem currently needs a container per sfml graphics type, rectshape, circleshape, texture, font, text, need to look at combining into one container vs multiple containers.