Change fromstring to be from string

secert-hitler/src/controller/gamemaster/gameevent.rs

@@ -6,7 +6,7 @@ pub struct GameEvent {
    d: json::JsonValue,
 }
 
-#[derive(PartialEq, Eq, Debug)]
+#[derive(PartialEq, Eq, Debug, Clone)]
 pub enum GameEventType {
    Null,
    GameStart,
@@ -44,7 +44,7 @@ impl GameEventType {
       ];
       for c in &cases {
          if format!("{:?}", c) == s {
-            return *c;
+            return c.clone();
          }
       }
       GameEventType::Null