Added game prototype, which showcases some features of SDL and a basic game structure, to the repository
Started prototype branch for the engine
Added makefile, cleaned up code specifically drawing.cpp
Added Tile Definitions to game world
Encapsulated game grid in game world class
Changed world definition to be image based rather than tile based
Added header files for various sprites

Hero, item, and enemy sprite header files were added.
Pixelation and overall structure progress
Update enemy.h
Update hero.h
Update item.h
Update sprite.h
Update pixelSet.h
Cleaned up headers and removed old world definition code
merged in image_based_map branch
Removed old game files from original prototype
Merged prototype with engine_prototype
Changed name of folder containing the code
Merge branch 'master' into engine_prototype
Merged engine_prototype to master