Reconnecting Feather WICED to Wifi

This is just a tracking issue to follow along for https://forums.adafruit.com/viewtopic.php?f=57&t=114903. As best as I could tell it still hasn't been resolved, although there is a workaround provided of using a watchdog timer to reset the board if it hangs. More info on watchdog timers at http://librambutan.readthedocs.io/en/latest/libmaple/api/iwdg.html.

```
#include

// ...

// turn on to recover after hang
boolean useWDT = true;

void setup()
{
//...

if( useWDT )
{
iwdg_init(IWDG_PRE_128, 11500000);
}
}

void loop()
{
// ...
# Call this to reset the watchdog timer.
# If it isn't called then the board will reset.
iwdg_feed();

}

```

No repository file or test is named. Start by reading the linked forum thread and the watchdog documentation, then reproduce the Wi-Fi hang; done would require a confirmed, tested resolution or a documented resolution beyond the existing watchdog workaround.

Written by the indexing model from the issue text.