Fixed issue 35 on main repo by setting state of the InfoWindow in propagateShowEvent

[thederputy]

I'm not sure why this doesn't already exist. What's the point of keeping state in the InfoWindow if it doesn't get updated? There should be no reason for a library user to have to do:

final InfoWindowManager infoWindowManager = new InfoWindowManager(getFragmentManager());
infoWindowManager.setWindowShowListener(new InfoWindowManager.WindowShowListener() {
            @Override
            public void onWindowShowStarted(@NonNull InfoWindow infoWindow) {
                infoWindow.setWindowState(InfoWindow.State.SHOWING);
            }

            @Override
            public void onWindowShown(@NonNull InfoWindow infoWindow) {
                infoWindow.setWindowState(InfoWindow.State.SHOWN);
            }

            @Override
            public void onWindowHideStarted(@NonNull InfoWindow infoWindow) {
                infoWindow.setWindowState(InfoWindow.State.HIDING);
            }

            @Override
            public void onWindowHidden(@NonNull InfoWindow infoWindow) {
                infoWindow.setWindowState(InfoWindow.State.HIDDEN);
            }
        });

just to get the state updated.

NOTE: this only makes the change for animated show and all hides. Non-animated show (the else in internalShow) does not call propagateShowEvent, therefore the state does not get changed and the listener does not fire. This should be handled in a separate issue.