Merge pull request #188 from brentru/gcp-core

Add Google Cloud IoT Core Library

Author: ladyada

.gitmodules

@@ -526,3 +526,6 @@
 [submodule "libraries/helpers/jwt"]
 	path = libraries/helpers/jwt
 	url = https://github.com/adafruit/Adafruit_CircuitPython_JWT.git
+[submodule "libraries/helpers/GC_IOT_Core"]
+	path = libraries/helpers/GC_IOT_Core
+	url = https://github.com/adafruit/Adafruit_CircuitPython_GC_IOT_Core.git

docs/drivers.rst

@@ -45,6 +45,7 @@ These libraries build on top of the low level APIs to simplify common tasks.
     Bluefruit LE Connect App <https://circuitpython.readthedocs.io/projects/bluefruitconnect/en/latest/>
     Bluetooth Low Energy (BLE) <https://circuitpython.readthedocs.io/projects/ble/en/latest/>
     Board Test Suite <https://circuitpython.readthedocs.io/projects/boardtest/en/latest/>
+    Google Cloud IoT Core <https://circuitpython.readthedocs.io/projects/gc_iot_core/en/latest/>
     Cursor Control <https://circuitpython.readthedocs.io/projects/cursorcontrol/en/latest/>
     DC Motor and Servo <https://circuitpython.readthedocs.io/projects/motor/en/latest/>
     Debouncer <https://circuitpython.readthedocs.io/projects/debouncer/en/latest/>