[Keymap] Adding IFo Hancroft's ErgoDox EZ Keymap (#14342)

keyboards/ergodox_ez/keymaps/ifohancroft/readme.md

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+![IFo Hancroft ErgoDox EZ Layout Image](https://i.imgur.com/8LRokp5.png)
+
+# IFo Hancroft's ErgoDox EZ Layout
+
+- Layer 0: A Standard ANSI QWERTY Layer.
+- Layer 1: A Gaming Layer. It replaces the Backspace with a Space, and the Dash with a 6, so you can play CS:GO without needing to lift your right hand from the mouse.
+- Layer 2: A function layer. It contains the F1-F12 keys and arrows on WASD.
+- Layer 3: A CAD Layer. It is basically a mirrored version of the right hand side, so you can use CAD without needing to lift your right hand from the the mouse.
+
+This keymap also does the following:
+
+- Sets the polling rate of the keyboard to 1ms
+- Sets the debounce time to 5ms
+- NKRO (Forced on)
+- Disables:
+    - Mouse Key
+    - Extra Key
+    - Unicode
+    - Swap Hands