Add admin-controlled self epinephrine for unconscious players

tests/test_observer_ownership.py

@@ -56,6 +56,7 @@ struct Game{void*local=nullptr;int spawns=0;void*GetPlayerController(){return lo
  SCR_ManualCamera*SpawnEntityPrefabLocal(Resource*,World*,EntitySpawnParams){spawns++;auto*c=new SCR_ManualCamera();c->previous=manager.current;manager.SetCamera(c);return c;}} game;
 bool gameAvailable=true;Game*GetGame(){return gameAvailable?&game:nullptr;}
 struct Controller{
+ string ERR_SelfEpinephrineHint(){return "";}
  IEntity actor=nullptr,m_ERRRecoveryBody=nullptr;float m_ERRRecoveryDeadline=-1;
  bool m_ERRObserverMonitor=false,m_ERRObserverReady=false,m_ERRShownObserverAvailable=false;
  string m_ERRShownRecoveryStatus;