Add autodoc mocks

Author: dastels

docs/conf.py

@@ -20,7 +20,10 @@
 # Uncomment the below if you use native CircuitPython modules such as
 # digitalio, micropython and busio. List the modules you use. Without it, the
 # autodoc module docs will fail to generate with a warning.
-# autodoc_mock_imports = ["digitalio", "busio"]
+autodoc_mock_imports = ["rtc", "supervisor", "pulseio", "audioio", "displayio", "neopixel",
+                        "microcontroller", "adafruit_touchscreen", "adafruit_bitmap_font",
+                        "adafruit_display_text", "adafruit_esp32spi", "secrets",
+                        "adafruit_sdcard", "storage", "adafruit_io"]
 
 
 intersphinx_mapping = {'python': ('https://docs.python.org/3.4', None),'CircuitPython': ('https://circuitpython.readthedocs.io/en/latest/', None)}