[Keymap] Add artflag kyria layout (#17778)

* Initial firmware

* feedback

* updates

* update map

keyboards/splitkb/kyria/keymaps/artflag/readme.md

@@ -0,0 +1,26 @@
+# Simple workman layout
+
+## Features
+
+- Workman layout
+- semicolon and colon are flipped. Colon on tap, semicolon on double tap.
+
+## Using the layout
+
+1. Use https://config.qmk.fm/#/splitkb/kyria/rev2/LAYOUT to edit `workman-artflag.json`.
+
+1. Convert to `keymap.c`:
+
+   ```bash
+   cd keyboards/splitkb/kyria/keymaps/ArtFlag
+   qmk json2c workman-artflag.json > keymap.c
+   cd ../../../../..
+   ```
+
+1. Git diff to bring back the code for tap dancing.
+1. Compile and flash:
+
+   ```bash
+   qmk compile && qmk flash
+   ```
+