Display puzzle difficulty, make difficulty specifications consistent across existing puzzles (#10210)

* - Consistent Puzzle Mode difficulty specifications.

* - Display puzzle difficulty next to its name

Author: Agetian

forge-ai/src/main/java/forge/ai/GameState.java

@@ -123,7 +123,7 @@ public String toString() {
             sb.append("URL:https://www.cardforge.org\n");
             sb.append("Goal:Win\n");
             sb.append("Turns:1\n");
-            sb.append("Difficulty:Easy\n");
+            sb.append("Difficulty:Common\n");
             sb.append("Description:Win this turn.\n");
             sb.append("[state]\n");
         }

forge-gui-desktop/src/main/java/forge/screens/home/puzzle/CSubmenuPuzzleCreate.java

@@ -61,7 +61,7 @@ private Map<String, List<String>> generateEmptyPuzzle(String firstPlayer) {
                 "URL:http://www.cardforge.org",
                 "Goal:Win",
                 "Turns:999",
-                "Difficulty:Easy",
+                "Difficulty:Common",
                 "Description:This is a completely empty puzzle placeholder."
                 )
         );

forge-gui/res/puzzle/INQ01.pzl

@@ -4,7 +4,7 @@ URL:http://imgur.com/a/EeY71
 Goal:Play the Specified Permanent
 Targets:Card.YouCtrl+namedBroodstar
 Turns:1
-Difficulty:Hard
+Difficulty:Rare
 Description:You can't win the game. Instead, play Broodstar before the end of your turn.\nYou know that the top four cards in your library are Ancient Tomb, Voltaic Key, Channel, and Welding Jar (in this order).
 [state]
 humanlife=7

forge-gui/res/puzzle/INQ02.pzl

@@ -4,7 +4,7 @@ URL:http://imgur.com/a/EeY71
 Goal:Gain Control of Specified Permanents
 Targets:Card.Red+inZoneBattlefield+OppCtrl,Card.White+inZoneBattlefield+OppCtrl
 Turns:1
-Difficulty:Hard
+Difficulty:Rare
 Description:You can't win the game. Instead, you need to gain control of all five of your opponent's permanents this turn.\nDream Leash is the only card in your library that will be drawn in your Draw step.
 [state]
 humanlife=5

forge-gui/res/puzzle/INQ03.pzl

@@ -4,7 +4,7 @@ URL:http://imgur.com/a/EeY71
 Goal:Play the Specified Permanent
 Targets:Card.YouCtrl+namedMarit Lage
 Turns:1
-Difficulty:Hard
+Difficulty:Rare
 Description:You can't win the game. Instead, you need to remove 10 ice counters from Dark Depths and create a Marit Lage token.\nDesperate Ritual is the only card in your library that will be drawn in your Draw step.
 [state]
 humanlife=1

forge-gui/res/puzzle/MTGP_01.pzl

@@ -3,7 +3,7 @@ Name:MTG Puzzles #01 - Gaining Experience
 URL:https://mtgpuzzles.com/puzzle/1
 Goal:Win
 Turns:1
-Difficulty:Medium
+Difficulty:Uncommon
 Description:Defeat your opponent before their next turn. You currently have 0 experience counters. Your opponent flashed in a Nebelgast Herald on your upkeep step, tapping your Mizzix of the Izmagnus. Can you find 4 damage to win?
 [state]
 turn=1

forge-gui/res/puzzle/MTGP_02.pzl

@@ -3,7 +3,7 @@ Name:MTG Puzzles #02 - It's a Trap!
 URL:https://mtgpuzzles.com/puzzle/2
 Goal:Survive
 Turns:1
-Difficulty:Easy
+Difficulty:Common
 Description:Survive until your next turn. It's your opponents turn and they have attacked with 5 Construct tokens! It's their declare blockers step, can you find a way to survive this turn? Don't forget about Throne of the God-Pharaoh!
 [state]
 turn=1

forge-gui/res/puzzle/MTGP_03.pzl

@@ -3,7 +3,7 @@ Name:MTG Puzzles #03 - Crews Control
 URL:https://mtgpuzzles.com/puzzle/3
 Goal:Win
 Turns:1
-Difficulty:Medium
+Difficulty:Uncommon
 Description:Win this turn. The Illusions are winning! Saddle up your creatures and become victorious!
 [state]
 turn=1

forge-gui/res/puzzle/MTGP_04.pzl

@@ -3,7 +3,7 @@ Name:MTG Puzzles #04 - Enrage Against the Machine
 URL:https://mtgpuzzles.com/puzzle/4
 Goal:Win before opponent's next turn
 Turns:1
-Difficulty:Very Hard
+Difficulty:Mythic
 Description:Win this turn. Your spirit-engrage tribal deck is not doing as well as you planned. Your opponent played a Jin-Gitaxias on their turn and you must find a way to win before its too late! The solution should not depend on how Jin-Gitaxias, Core Augur blocks.
 [state]
 turn=1

forge-gui/res/puzzle/MTGP_05.pzl

@@ -3,7 +3,7 @@ Name:MTG Puzzles #05 - Miracles of Nature
 URL:https://mtgpuzzles.com/puzzle/5
 Goal:Win
 Turns:1
-Difficulty:Hard
+Difficulty:Rare
 Description:Win this turn. After a Gruuling match you're down to the last card in your library - can you get through your opponent's defenses to secure the win? It's the beginning of your Upkeep Step. Your library consists of only Blessings of Nature. Damping Sphere still increases the casting cost for any card's alternative casting cost. Your solution should not depend on how your opponent will block.
 [state]
 turn=20