anavi/knobs3: Add ANAVI Knob 1

Add support for ANAVI Knob 1: an open source programmable mini
mechanical keyboard with a rotary encoders and Seeed XIAO RP2040.
This is open source hardware designed with KiCad, the smaller
version of ANAVI Knobs 3.

Signed-off-by: Leon Anavi <leon@anavi.org>

boards/anavi/knobs1/anaviknob.py

@@ -0,0 +1,23 @@
+'''
+KMK keyboard for ANAVI Knob 1
+'''
+
+import board
+
+from kmk.kmk_keyboard import KMKKeyboard
+from kmk.scanners.keypad import KeysScanner
+
+# fmt: off
+_KEY_CFG = [
+    board.D0
+]
+# fmt: on
+
+
+class AnaviKnob(KMKKeyboard):
+    '''
+    Default keyboard config for the ANAVI Knob 1
+    '''
+
+    def __init__(self):
+        self.matrix = KeysScanner(_KEY_CFG)