Return all installed apps in the `update` method if `get_running_apps` is False

Also, the get_properties method should have a get_installed_apps (default: False) parameter so that when an HA user calls GET_PROPERTIES, the list of installed apps gets updated.

Presumably, you mean

python-androidtv/androidtv/androidtv/androidtv_sync.py

Line 83 in 343b74e

def update(self, get_running_apps=True, lazy=True):

Do you have advice as to what a test case might look like for this or a similar starting point?