feat: added eduperson scopes to heuristic endpoints

Adding scope to OIDC authentication, and checking for them at '/HeuristicGetID' and '/GetHeuristic'.

closes PRX-358

perun/proxygui/gui/gui.py

@@ -61,7 +61,7 @@ def check_scope_claim(auth_group_name, cfg):
 
     return (
         claim_cfg_value in session_scope_claim
-        if type(session_scope_claim) == list
+        if isinstance(session_scope_claim, list)
         else claim_cfg_value == session_scope_claim
     )