[Keyboard] add duckboard by doodboard (#10318)

* Adding duckboard to QMK

Adding duckboard support to QMK

* added duckboard under doodboard

* changed debouncing delay to debounce

* Update keyboards/doodboard/duckboard/config.h

* Update keyboards/doodboard/duckboard/config.h

* Update keyboards/doodboard/duckboard/kb.h

* Update keyboards/doodboard/duckboard/keymaps/default/keymap.c

* Update keyboards/doodboard/duckboard/rules.mk

* Update keyboards/doodboard/duckboard/kb.h

* Update keyboards/doodboard/duckboard/kb.c

* Update code per review

Update code per review

* folder name errod

folder name errod

* Update keyboards/doodboard/duckboard/config.h

* Update keyboards/doodboard/duckboard/rules.mk

* Update keyboards/doodboard/duckboard/rules.mk

* Update keyboards/doodboard/duckboard/config.h

* Create info.json

* Update keyboards/doodboard/duckboard/duckboard.h

* Update keyboards/doodboard/duckboard/info.json

* Update keyboards/doodboard/duckboard/info.json

* Update keyboards/doodboard/duckboard/duckboard.h

* Update keyboards/doodboard/duckboard/readme.md

keyboards/doodboard/duckboard/readme.md

@@ -0,0 +1,17 @@
+# duckboard
+
+An 18-key numpad with rotary encoder and OLED support. 
+
+* Keyboard Maintainer: [doodboard](https://github.com/doodboard)
+* Hardware Supported: duckboard PCB
+* Hardware Availability: Private Group Buy
+
+Make example for this keyboard (after setting up your build environment):
+
+    make doodboard/duckboard:default
+
+Flashing example for this keyboard:
+
+    make doodboard/duckboard:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).