Add a reconnect method to the WiFi manager

There is currently no single method way to reconnect the WiFi manager if the connection is lost. Currently it's a two step process:

```python
wifi.reset()
wifi.connect()
```

It would be nice to have a single call to do this - `wifi.reconnect()`

Search the WiFi manager for the existing reset() and connect() methods and read how they are exposed. Add the requested reconnect() entry point so it performs the same two-step reconnect flow, then verify that callers can use wifi.reconnect() for a lost connection.

Written by the indexing model from the issue text.