DevastatingTKL Keyboard (#8209)

* Save progress

* Finished matrix and everything

* Apply suggestions from code review

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Update DevastatingTKL

* Renames

* Add renamed files

* Update chibios files and VIA keymap for completion

* Some cleanup

* Apply suggestions from code review

Co-Authored-By: James Young <18669334+noroadsleft@users.noreply.github.com>

* Update keyboards/cannonkeys/devastatingtkl/rules.mk

Co-Authored-By: Joel Challis <git@zvecr.com>

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>
Co-authored-by: Joel Challis <git@zvecr.com>

keyboards/cannonkeys/devastatingtkl/devastatingtkl.c

@@ -0,0 +1 @@
+#include "devastatingtkl.h"