improve tox add friend/group, creating the contact directly

and add new group creation

src/tox_ui_utils.hpp

@@ -5,12 +5,15 @@
 class ToxClient;
 struct ConfigModelI;
 struct ToxPrivateI;
+class ToxContactModel2;
 
 class ToxUIUtils {
 	bool _show_add_friend_window {false};
 	bool _show_add_group_window {false};
+	bool _show_new_group_window {false};
 
 	ToxClient& _tc;
+	ToxContactModel2& _tcm;
 	ConfigModelI& _conf;
 	ToxPrivateI* _tp {nullptr};
 
@@ -19,6 +22,7 @@ class ToxUIUtils {
 	public:
 		ToxUIUtils(
 			ToxClient& tc,
+			ToxContactModel2& tcm,
 			ConfigModelI& conf,
 			ToxPrivateI* tp = nullptr
 		);