Implementing "suspected" mechanic (#11670)

* [MKM] Implement Agrus Kos, Spirit of Justice

* rework effects

* [MKM] Implement Airtight Alibi

* [MKM] Implement Convenient Target

* [MKM] Implement Repeat Offender

* add test

* add more tests

* add tooltip for suspected

* implement requested changes

Mage/src/main/java/mage/game/events/GameEvent.java

@@ -567,6 +567,12 @@ public class GameEvent implements Serializable {
          playerId   the player crafting
          */
         EXILED_WHILE_CRAFTING,
+        /* Become suspected
+         targetId   the permanent being suspected
+         sourceId   of the ability suspecting
+         playerId   the player suspecting
+         */
+        BECOME_SUSPECTED,
         //custom events
         CUSTOM_EVENT
     }