Implemented resource manager which can load textures and levels.

Implemented script to generate Resources.g.h file linking assets to code.
Added assets from old project.

src/model/Level.h

@@ -32,6 +32,8 @@ namespace model {
 		Cell cell(size_t layer, size_t row, size_t col) const;
 		void setCell(size_t layer, size_t row, size_t col, Cell value);
 
+		size_t m_cellWidth, m_cellHeight;
+
 	private:
 		Cell* m_cells;
 		size_t m_layers;