Re-add LED support

This reverts commit 5b069a0104.

kmk/boards/converter/keebio/tragicforce68.py

@@ -0,0 +1,9 @@
+from kmk.consts import DiodeOrientation
+from kmk.mcus.circuitpython_samd51 import Firmware as _Firmware
+from kmk.pins import Pin as P
+
+
+class Firmware(_Firmware):
+    col_pins = (P.A0, P.A1, P.A2, P.A3, P.A4, P.A5, P.SCK, P.MOSI)
+    row_pins = (P.TX, P.RX, P.SDA, P.SCL, P.D9, P.D10, P.D12, P.D11, P.D13)
+    diode_orientation = DiodeOrientation.COLUMNS