Adafruit-circuitpython-ntp

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-ntp`.

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

* Adds `valid_time` property for `set_time` calls from code to detect a possible error raised by ESP32SPI by `get_time call`, thanks jerryneedell for the fix within ESP32SPI!
* Modified example to reflect use of this property

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

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

Network Time Protocol (NTP) helper for CircuitPython. Calls to `set_time` backs the `time.time()` and `time.localtime()` functions using the "local time".


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

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