GUI: improved double faced tokens:

- added tokens support in test render dialog;
 - improved PT drawing;
 - fixed broken second side switch button (related to #10231);
 - fixed miss override in TokenImpl (all override with backFace must be removed, see todo);

Mage/src/main/java/mage/game/permanent/token/Token.java

@@ -1,4 +1,3 @@
-
 package mage.game.permanent.token;
 
 import mage.MageObject;