Fixed resize constraining. Was using same function as translation but this is no go for unaligned axis.

Made a generic snapGrid function. Now, each transform needs to define it's snapping parameters in their init. This is needed because of the constraint branching.

source/blender/src/transform_generics.c

@@ -425,6 +425,10 @@ void apply_grid2(float *val, int max_index, float factor, float factor2)
 	apply_grid3(val, max_index, fac1, fac2, fac3);
 }
 
+void snapGrid(TransInfo *t, float *val) {
+	apply_grid3(val, t->num.idx_max, t->snap[0], t->snap[1], t->snap[2]);
+}
+
 void applyTransObjects(TransInfo *t)
 {
 	TransData *td;