Map / player things

-Added build location indicator (simple for now, will get better when
buildings are implemented).
-Replaced tiles with some royalty free ones (credits included)
Cleanup / scaling changes

-Changed tilesize to 32x32 (doubled from 16x16) due to upcoming addition
of tileset.
-Added #ifndef's to prevent multiple identical class definitions
Fixed map issue

-Fixed missing last row of map. (NEED LINE END AFTER LAST LINE)
Added initial images for map (still more to come)

-Changed map texture loading to load in images by number in
./assets/bmp/
-Changed greentd.dat to show something that fits these images
-Added initial tiles from tileset (more splicing still needs to be done)
Added comments / class heirarchy
Altered map things

-Now number in text file should match file name in /assets/terrain/
instead of being 1 below.
-Added rest of tileset
-Entering numbers in text file out of range of textures is now prevented
(entering a number below 1 assumes 1 and a number above 355 assumes 355)
Added README.md

Added credits for tileset
GTDProjectile

Addition of GTDProjectile.cpp and header file
Added GTDWaypoint / node

-Added Waypoint / waypoint node classes.
-Some changes to Game/Rect/Unit to reflect these additions.