[Keyboard] Barleycorn (#10118)

* Initial commit

* Barleycorn rename

* Update readme.md

* PR checklist fixes

* Update info.json

* Update keyboards/barleycorn/rules.mk

* Update keyboards/barleycorn/config.h

* Update keyboards/barleycorn/rules.mk

* Update keyboards/barleycorn/config.h

* Update keyboards/barleycorn/info.json

* Update keyboards/barleycorn/info.json

* Update keyboards/barleycorn/readme.md

* Update keyboards/barleycorn/rules.mk

* Update keyboards/barleycorn/rules.mk

* PR review

* Update keyboards/barleycorn/readme.md

* Update keyboards/barleycorn/rules.mk

* Update keyboards/barleycorn/keymaps/default/readme.md

* Update keyboards/barleycorn/keymaps/iso/readme.md

* Update keyboards/barleycorn/rules.mk

* Update keyboards/barleycorn/readme.md

* Update keyboards/barleycorn/rules.mk

* Update keyboards/barleycorn/matrix.c

* Update keyboards/barleycorn/barleycorn.c

* added ansi/iso keymaps!

* Update keyboards/barleycorn/info.json

keyboards/barleycorn/readme.md

@@ -0,0 +1,23 @@
+# Barleycorn
+
+![Barleycorn](https://i.imgur.com/vi3L1HYl.png)
+
+An f-row less compact 1800 kit with only through hole components.
+
+* Keyboard Maintainer: [Yiancar](http://yiancar-designs.com/) and on [GitHub](https://github.com/yiancar)
+* Hardware Supported: ATMEGA328p with vusb [PCB](https://github.com/yiancar/gingham_pcb)
+* Hardware Availability: https://mykeyboard.eu/, https://novelkeys.xyz
+
+Make example for this keyboard (after setting up your build environment):
+
+    make barleycorn:default
+
+Flashing example for this keyboard:
+
+    make barleycorn:default:flash
+
+Bootloader:
+use usbasploader from HSGW's repository.
+https://github.com/hsgw/USBaspLoader/tree/plaid
+
+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).