[Keyboard] Add waffling60 Rev D ISO Hotswap (#18372)

Co-authored-by: 4pplet <4pplet@protonmail.com>
Co-authored-by: 4pplet <stefan.ess@gmail.com>

keyboards/4pplet/waffling60/rev_a/config.h

@@ -1,3 +1,19 @@
+/*
+Copyright 2022 Stefan Sundin "4pplet" <mail@4pplet.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
 #pragma once
 
 #include "config_common.h"