[Keyboard] knife66 added (#9877)

* feat: keyboard knife66 added

* fix: requested changes applied

* docs: updated readme

* feat: added support for ws2812

* fix: adjusted headers and readme

* fix: moved to LAYOUT_all

keyboards/misterknife/knife66/knife66.c

@@ -0,0 +1,17 @@
+/* Copyright 2020 Thierry Kleist
+ *
+ * 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/>.
+ */
+
+ #include "knife66.h"