Adafruit-circuitpython-icm20x

This release includes:
* Added support for the ICM20948
* Refactor
* Name change in GitHub and PyPI from ICM20649 to ICM20X

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-icm20x`.

Read the [docs](http://circuitpython.readthedocs.io/projects/icm20649/en/latest/) for info on how to use it.

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-icm20649`.

Read the [docs](http://circuitpython.readthedocs.io/projects/icm20649/en/latest/) for info on how to use it.

We have upgraded Pylint checks to use the latest version of Pylint and implemented usage of Black Python formatting. This does not change the functionality of the code - it is designed to bring it up to current standards and make it more readable.

* Remove pinned Pylint version number from build.yml file
* Synced `.pylintrc` file to match Adafruit standard
* Ran upgraded Pylint and applied any changes or new disables necessary
* Ran Black formatter and allowed application of changes across entire repo

For more information on using Pylint and Black on your code, check out [this guide on working with Pylint and Black](https://learn.adafruit.com/improve-your-code-with-pylint)

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-icm20649`.

Read the [docs](http://circuitpython.readthedocs.io/projects/icm20649/en/latest/) for info on how to use it.

This release includes:
* Migrating this repository from Travis to GitHub Actions. This has no effect on the behavior of the code itself.

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-icm20649`.

Read the [docs](http://circuitpython.readthedocs.io/projects/icm20649/en/latest/) for info on how to use it.

This release includes adds the example code that was missing from the README and should allow the library to deploy to PyPi correctly

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-icm20649`.

Read the [docs](http://circuitpython.readthedocs.io/projects/icm20649/en/latest/) for info on how to use it.

This release includes
* Basic accelerometer and gyro readings
* adjustable data rate and measurement range for the gyro and accelerometer

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-icm20649`.

Read the [docs](http://circuitpython.readthedocs.io/projects/icm20649/en/latest/) for info on how to use it.