[READY FOR REVIEW] Implement a "multi-amount" dialog (#7528)

* Implemented chooseTargetAmount and new GUI dialog (distribute damage, distribute mana)
* Added tests and AI support;
* Test framework: added aliases support in TargetAmount dialogs;

Co-authored-by: Oleg Agafonov <jaydi85@gmail.com>

Mage/src/main/java/mage/players/Player.java

@@ -708,6 +708,19 @@ public interface Player extends MageItem, Copyable<Player> {
 
     int getAmount(int min, int max, String message, Game game);
 
+    /**
+     * Player distributes amount among multiple options
+     *
+     * @param outcome   AI hint
+     * @param messages  List of options to distribute amount among
+     * @param min       Minimum value per option
+     * @param max       Total amount to be distributed
+     * @param type      MultiAmountType enum to set dialog options such as title and header
+     * @param game      Game
+     * @return          List of integers with size equal to messages.size().  The sum of the integers is equal to max.
+     */
+    List<Integer> getMultiAmount(Outcome outcome, List<String> messages, int min, int max, MultiAmountType type, Game game);
+
     void sideboard(Match match, Deck deck);
 
     void construct(Tournament tournament, Deck deck);