LuckPerm: keep contexts active after reload of groups (#2186)

* Use context aware groups

* Revert "Use context aware groups"

This reverts commit 5adc6ef7

* Keep luckperm contexts after authentication

* Code cleanup

* Code cleanup

* Fix nullpointer for context maps

* Code cleanup

* Use uuids for sqlite and postgresql

* Revert "Use uuids for sqlite and postgresql"

This reverts commit 05296e5f23bd4379a89647656f08432c718e6f9c.

* Cleanup imports

* Fix test

Co-authored-by: David Maes <david.maes@kbc.be>

src/main/java/fr/xephi/authme/permission/handlers/LuckPermGroup.java

@@ -0,0 +1,23 @@
+package fr.xephi.authme.permission.handlers;
+
+import net.luckperms.api.context.ImmutableContextSet;
+import net.luckperms.api.model.group.Group;
+
+public class LuckPermGroup {
+    private Group group;
+    private ImmutableContextSet contexts;
+
+    public LuckPermGroup(Group group, ImmutableContextSet contexts) {
+        this.group = group;
+
+        this.contexts = contexts;
+    }
+
+    public Group getGroup() {
+        return group;
+    }
+
+    public ImmutableContextSet getContexts() {
+        return contexts;
+    }
+}