Added rect draw api

Added some new maths types
Updated shaders to use new D_Rect structure
Added rect buffers to frames
Misc cleanup

code/game/impl/npc.c

@@ -16,7 +16,7 @@ void updateNPC(F32 delta, NPC *npc, World *world) {
         npc->path = Nav_Path(world->navMesh, npc->currentNavNode, npc->targetNavNode);
         printf("done\n");
         npc->walkTimer = 0;
-        printf("%*.s started walking to %d\n", Sv(npc->name), npc->targetNavNode);
+        printf("%.*s started walking to %d\n", Sv(npc->name), npc->targetNavNode);
       }
     break;
     case NPC_ACTION_WALKING: