Relax permission check on OSX, it seem returning wrong info for setuid

gns3server/compute/base_manager.py

@@ -325,6 +325,10 @@ class BaseManager:
             # do not check anything on Windows
             return True
 
+        if sys.platform.startswith("darwin"):
+            if os.stat(executable).st_uid == 0:
+                return True
+
         if os.geteuid() == 0:
             # we are root, so we should have privileged access.
             return True