New keyboard: Clueboard 2x1800 2019 (#8721)

* Initial support for the 2019 2x1800

* Get all hardware working.

* Fix shake to undo

* Use the method suggested by @reywood

* Remove the unnecessary for loop

* changes suggested by @noroadsleft

* Fix comma, period, and forward slash keys for clueboard 2x1800 default keymap by @reywood

* Call led_set_user at the end of led_set_kb (#6265)

* [Keymap] Add default layouts for 2u spacebar (#6266)

* make progress on drawing mode

* Finish drawing toy mode

* Update keyboards/clueboard/2x1800/2019/config.h

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update keyboards/clueboard/2x1800/2019/2019.c

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update keyboards/clueboard/2x1800/2019/2019.c

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update keyboards/clueboard/2x1800/2019/2019.c

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update keyboards/clueboard/2x1800/2019/rules.mk

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update keyboards/clueboard/2x1800/2019/rules.mk

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

* remove unnecessary files

* Update keyboards/clueboard/2x1800/2019/rules.mk

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

* apply suggestions

* Apply suggestions from code review

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

Co-authored-by: Sean Dwyer <sean.dwyer@gmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/clueboard/2x1800/readme.md

@@ -1,6 +1,11 @@
 # Clueboard 2x1800
 
-Clueboard Double 1800 All The Way
+Clueboard 2x1800
+
+This is a keyboard that Clueboard releases for a 1-day group buy every Apr 1. Each year has a different theme.
+
+* [2018:](2018/) Double 1800 All The Way
+* [2019:](2019/) Mechanical Drawing Toy Edition
 
 * Keyboard Maintainer: [Zach White](https://github.com/skullydazed)
 * Hardware Supported: Clueboard 2x1800 PCB