Core/Code: Unify codestyle for brackets: {} to { }.

Also added missing copyright to some files.

src/server/collision/DynamicTree.cpp

@@ -150,7 +150,7 @@ struct DynamicTreeIntersectionCallback
 {
     bool did_hit;
     uint32 phase_mask;
-    DynamicTreeIntersectionCallback(uint32 phasemask) : did_hit(false), phase_mask(phasemask) {}
+    DynamicTreeIntersectionCallback(uint32 phasemask) : did_hit(false), phase_mask(phasemask) { }
     bool operator()(const G3D::Ray& r, const GameObjectModel& obj, float& distance)
     {
         did_hit = obj.intersectRay(r, distance, true, phase_mask);