Adding MacroPad library.

Author: kattni

.gitmodules

@@ -830,3 +830,6 @@
 [submodule "libraries/drivers/displayio_sh1106"]
 	path = libraries/drivers/displayio_sh1106
 	url = https://github.com/adafruit/Adafruit_CircuitPython_DisplayIO_SH1106.git
+[submodule "libraries/helpers/macropad"]
+	path = libraries/helpers/macropad
+	url = https://github.com/adafruit/Adafruit_CircuitPython_MacroPad.git

docs/drivers.rst

@@ -31,6 +31,7 @@ specific boards.
     Adafruit CLUE <https://circuitpython.readthedocs.io/projects/clue/en/latest/>
     Adafruit FeatherWings <https://circuitpython.readthedocs.io/projects/featherwing/en/latest/>
     Adafruit FunHouse <https://circuitpython.readthedocs.io/projects/funhouse/en/latest/>
+    Adafruit MacroPad <https://circuitpython.readthedocs.io/projects/macropad/en/latest/>
     MatrixPortal (Metro M4 Airlift + RGB Shield) <https://circuitpython.readthedocs.io/projects/matrixportal/en/latest/>
     Adafruit MagTag <https://circuitpython.readthedocs.io/projects/magtag/en/latest/>
     Adafruit PortalBase <https://circuitpython.readthedocs.io/projects/portalbase/en/latest/>