Add AZ_BUDGET_DEFINE/AZ_BUDGET_DECLARE and remove driller

NOTE: The memory driller is still intact for now to avoid needing to
modify allocators, but the frame/cpu portions of driller and the
standalone executable are now gone.

Signed-off-by: Jeremy Ong <jcong@amazon.com>

Code/Editor/Objects/EntityObject.cpp

@@ -497,7 +497,7 @@ bool CEntityObject::HitTestRect(HitContext& hc)
 //////////////////////////////////////////////////////////////////////////
 int CEntityObject::MouseCreateCallback(CViewport* view, EMouseEvent event, QPoint& point, int flags)
 {
-    AZ_PROFILE_FUNCTION(Editor);
+    AZ_PROFILE_FUNCTION(Entity);
 
     if (event == eMouseMove || event == eMouseLDown)
     {