FineTune HDR and Other Stuff

-=-=-=-=-=-=-=-=-=-=-=-=-=-

-More parameters to ESM shadows
-LightMap Octree now can bake to "hdr" (use HDR8 for now)
-New resource PolygonPathFinder, polygon based pathfinder using A-star algorithm. (will add nodes to use it more easily soon)

servers/visual/rasterizer.h

@@ -508,6 +508,7 @@ public:
 
 		float octree_lattice_size;
 		float octree_lattice_divide;
+		float texture_multiplier;
 		int octree_steps;
 		Vector2 octree_tex_pixel_size;
 	};