Close #7 Group system (#8)

* Add new gamemode commands and update plugin descriptions

This commit introduces new gamemode commands including 'gm', 'gmc', 'gms', 'gma', and 'gmsp' related to creative, survival, adventure, and spectator modes respectively. Command descriptions were added in plugin.yml file. Moreover, validations for player name were added using PlayerValidator class. Minor changes include addition of a description in pom.xml and command registerations in Loader class.

* Replace 'RankColors' with 'RankUtil' and update references

Developed the 'RankUtil' class by replacing 'RankColors' for more functional role. The old 'RankColors' class was deleted and references to it in chat and tablist subsystems were updated. These changes better support rank management's extended tasks and also retain the color assigning feature of the older class.

* closes #7; Set permission in GamemodeAdventure and revise rank handling

Add a new permission in the GamemodeAdventure command class. Additionally, revise rank handling by replacing 'RankColors' with 'RankUtil', enhancing its functional role and updating all relevant references in chat and tablist subsystems. These adjustments help manage tasks related to ranks more effectively and maintain the color-assigning function of the previous class.

Author: mathiasclari

src/main/java/net/cherrycraft/cherrycore/chatsystem/utils/RankUtil.java

@@ -37,6 +37,14 @@ public static int compareRanks(RankUtil rank1, RankUtil rank2) {
         return Integer.compare(rank1.getPriority(), rank2.getPriority());
     }
 
+    public static RankUtil fromGroupName(String groupName) {
+        for (RankUtil rank : RankUtil.values()) {
+            if (rank.groupName.equalsIgnoreCase(groupName)) {
+                return rank;
+            }
+        }
+        throw new IllegalArgumentException("No enum constant " + RankUtil.class.getCanonicalName() + "." + groupName);
+    }
     public @Nullable Group getLPRank() {
         return LuckPermsProvider.get().getGroupManager().getGroup(this.groupName);
     }

src/main/java/net/cherrycraft/cherrycore/commands/gamemode/sepperateCommands/GamemodeAdventure.java

@@ -11,6 +11,7 @@
 public class GamemodeAdventure extends CommandManager {
     public GamemodeAdventure(String commandName) {
         super("gma");
+        setPermission("cherrycore.gamemode");
     }
 
     @Override

src/main/java/net/cherrycraft/cherrycore/tablist/Tablist.java

@@ -72,6 +72,7 @@ public void onPlayerJoin(PlayerJoinEvent event) {
                 team.setSuffix(suffix);
 
                 // Update the team's display name
+                RankUtil rankColor = RankUtil.fromGroupName(primaryGroup);
                 RankUtil rankColor = RankUtil.valueOf(primaryGroup.toUpperCase());
                 team.setDisplayName(rankColor.getColor());
             }