#1034 Create permissions for debug sections

- Add an individual permission for each debug section (including wildcard perm)
- Create test for DebugCommand
- Refactor tests for the enum permission nodes to use the same abstract class
- Update related project files (plugin.yml, permission docs, command docs)

src/main/java/fr/xephi/authme/permission/DebugSectionPermissions.java

@@ -0,0 +1,58 @@
+package fr.xephi.authme.permission;
+
+/**
+ * Permissions for the debug sections (/authme debug).
+ */
+public enum DebugSectionPermissions implements PermissionNode {
+
+    /** General permission to use the /authme debug command. */
+    DEBUG_COMMAND("authme.debug.command"),
+
+    /** Permission to use the country lookup section. */
+    COUNTRY_LOOKUP("authme.debug.country"),
+
+    /** Permission to use the stats section. */
+    DATA_STATISTICS("authme.debug.stats"),
+
+    /** Permission to use the permission checker. */
+    HAS_PERMISSION_CHECK("authme.debug.perm"),
+
+    /** Permission to use sample validation. */
+    INPUT_VALIDATOR("authme.debug.valid"),
+
+    /** Permission to use the limbo data viewer. */
+    LIMBO_PLAYER_VIEWER("authme.debug.limbo"),
+
+    /** Permission to view permission groups. */
+    PERM_GROUPS("authme.debug.group"),
+
+    /** Permission to view data from the database. */
+    PLAYER_AUTH_VIEWER("authme.debug.db"),
+
+    /** Permission to view spawn information. */
+    SPAWN_LOCATION("authme.debug.spawn"),
+
+    /** Permission to use the test email sender. */
+    TEST_EMAIL("authme.debug.mail");
+
+    private final String node;
+
+    /**
+     * Constructor.
+     *
+     * @param node the permission node
+     */
+    DebugSectionPermissions(String node) {
+        this.node = node;
+    }
+
+    @Override
+    public String getNode() {
+        return node;
+    }
+
+    @Override
+    public DefaultPermission getDefaultPermission() {
+        return DefaultPermission.OP_ONLY;
+    }
+}

src/main/java/fr/xephi/authme/permission/PlayerStatePermission.java

@@ -29,12 +29,7 @@ public enum PlayerStatePermission implements PermissionNode {
     /**
      * Permission to bypass the purging process.
      */
-    BYPASS_PURGE("authme.bypasspurge", DefaultPermission.NOT_ALLOWED),
-
-    /**
-     * Permission to use the /authme debug command.
-     */
-    DEBUG_COMMAND("authme.debug", DefaultPermission.OP_ONLY);
+    BYPASS_PURGE("authme.bypasspurge", DefaultPermission.NOT_ALLOWED);
 
     /**
      * The permission node.