Add res dir; update render functions.

Add:
	res/
		-will contain all game resources: maps, ASCII sprites, audio
		files, etc.

	res/lvl1.map
		-plaintext ASCII map for level 1.

	src/termcrate.c
		-scanMap() function to scan map into mapBuffer when game begins;
		update render() to print map. On-screen Actors and Crates will
		be printed by a second iterative loop.

	src/termcrate.h
		-macros for screen dimensions/map name.

Fix:
	src/termcrate.c, src/termcrate.h
		-started compiling/debugging; fixed numerous, small errors (i.e.
		typos).