New lightmapper

-Added LocalVector (needed it)
-Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too)
-Fixes and changes all around the place
-Added library for 128 bits fixed point (required for Delaunay3D)

servers/rendering/shader_language.h

@@ -79,6 +79,7 @@ public:
 		TK_TYPE_ISAMPLER3D,
 		TK_TYPE_USAMPLER3D,
 		TK_TYPE_SAMPLERCUBE,
+		TK_TYPE_SAMPLERCUBEARRAY,
 		TK_INTERPOLATION_FLAT,
 		TK_INTERPOLATION_SMOOTH,
 		TK_CONST,
@@ -218,6 +219,7 @@ public:
 		TYPE_ISAMPLER3D,
 		TYPE_USAMPLER3D,
 		TYPE_SAMPLERCUBE,
+		TYPE_SAMPLERCUBEARRAY,
 		TYPE_STRUCT,
 		TYPE_MAX
 	};
@@ -682,6 +684,7 @@ public:
 					texture_order(0),
 					type(TYPE_VOID),
 					precision(PRECISION_DEFAULT),
+					scope(SCOPE_LOCAL),
 					hint(HINT_NONE),
 					filter(FILTER_DEFAULT),
 					repeat(REPEAT_DEFAULT),