[Game Interactor] Add LoadGame and ExitGame hooks (#2542)

* add loadgame/exitgame GI hooks

* implement loadgame/exitgame hooks in game code

* move entrance tracker data lifecycle to hooks

* update cosmetic editor to update onloadgame hook

soh/src/code/z_sram.c

@@ -611,6 +611,4 @@ void Sram_InitSram(GameState* gameState) {
     // When going from a rando save to a vanilla save within the same game instance
     // we need to reset the entrance table back to its vanilla state
     Entrance_ResetEntranceTable();
-    // Clear out the entrance tracker
-    Entrance_ClearEntranceTrackingData();
 }