adding pixelmap

Author: FoamyGuy

.gitmodules

@@ -932,3 +932,6 @@
 [submodule "libraries/helpers/displayio_flipclock"]
 	path = libraries/helpers/displayio_flipclock
 	url = https://github.com/adafruit/Adafruit_CircuitPython_DisplayIO_FlipClock
+[submodule "libraries/helpers/pixelmap"]
+	path = libraries/helpers/pixelmap
+	url = https://github.com/adafruit/Adafruit_CircuitPython_PixelMap.git

docs/drivers.rst

@@ -45,6 +45,10 @@ Helper Libraries
 
 These libraries build on top of the low level APIs to simplify common tasks.
 
+.. toctree::
+
+    PixelMap <https://docs.circuitpython.org/projects/pixelmap/en/latest/>
+
 LED Helpers
 ^^^^^^^^^^^^
 
@@ -55,6 +59,7 @@ Helpers for animating LEDs.
     Fancy LED (similar to FastLED) <https://docs.circuitpython.org/projects/fancyled/en/latest/>
     LED Animation <https://docs.circuitpython.org/projects/led-animation/en/latest/>
 
+
 User Interface and GFX Helpers
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^