Adafruit-circuitpython-vcnl4040

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-vcnl4040`.

Read the [docs](http://circuitpython.readthedocs.io/projects/vcnl4040/en/latest/) for info on how to use it.

This release adds the `lux` property that returns the raw light data scaled according to the current integration time settings so that changing integration time will not affect the reported light.

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

To use in CPython, `pip3 install adafruit-circuitpython-vcnl4040`.

Read the [docs](http://circuitpython.readthedocs.io/projects/vcnl4040/en/latest/) for info on how to use it.

This release includes
* ambient light, white light, and proximity sensing
* high and low interrupts for proximity and ambient light

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

To use in CPython, `pip3 install adafruit-circuitpython-vcnl4040`.

Read the [docs](http://circuitpython.readthedocs.io/projects/vcnl4040/en/latest/) for info on how to use it.