The client was disconnected by the server because of inactivity.
Thanks
Hi there,
I got this exception when I have a long connection that exceeds both `wait_timeout` and `interactive_timeout` timeouts:
```python
  File "/usr/lib/python3/dist-packages/peewee.py", line 5513, in get
    return sq.get()
  File "/usr/lib/python3/dist-packages/peewee.py", line 5911, in get
    return clone.execute(database)[0]
  File "/usr/lib/python3/dist-packages/peewee.py", line 1587, in inner
    return method(self, database, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/peewee.py", line 1658, in execute
    return self._execute(database)
  File "/usr/lib/python3/dist-packages/peewee.py", line 1809, in _execute
    cursor = database.execute(self)
  File "/usr/lib/python3/dist-packages/peewee.py", line 2666, in execute
    return self.execute_sql(sql, params, commit=commit)
  File "/usr/lib/python3/dist-packages/peewee.py", line 2660, in execute_sql
    self.commit()
  File "/usr/lib/python3/dist-packages/peewee.py", line 2451, in __exit__
    reraise(new_type, new_type(*exc_args), traceback)
  File "/usr/lib/python3/dist-packages/peewee.py", line 178, in reraise
    raise value.with_traceback(tb)
  File "/usr/lib/python3/dist-packages/peewee.py", line 2653, in execute_sql
    cursor.execute(sql, params or ())
  File "/usr/lib/python3/dist-packages/MySQLdb/cursors.py", line 209, in execute
    res = self._query(query)
  File "/usr/lib/python3/dist-packages/MySQLdb/cursors.py", line 315, in _query
    db.query(q)
  File "/usr/lib/python3/dist-packages/MySQLdb/connections.py", line 226, in query
    _mysql.connection.query(self, query)
peewee.OperationalError: (4031, 'The client was disconnected by the server because of inactivity. See wait_timeout and interactive_timeout for configuring this behavior.')
```
I spotted the [shortcuts](https://github.com/coleifer/peewee/blob/master/playhouse/shortcuts.py) module inside the peewee code handles these errors: 2006,2013, 2014. I think this can be added to the `ReconnectMixin` class as well.

Do you want me to add this into the `ReconnectMixin` class?