Support getting HWND from window title

[CompuGenius-Programs]

I think it would be helpful to add a way of getting a window's HWND from it's title, so that it can be used to automate moving windows in more scenarios.

I currently implemented this as follows:

def move_window_by_name(hwnd, l_param):
    if win32gui.IsWindowVisible(hwnd):
        if 'Window Title' in win32gui.GetWindowText(hwnd):
            AppView(hwnd).move(VirtualDesktop(2))

win32gui.EnumWindows(move_window_by_name, None)

I'm sure there's a way to add this into the main module, I just didn't look into it. Or, at least maybe put this code in the README in case anyone else wants it.

[mrob95]

I'm reluctant to start adding functions like this because it's usually fairly simple to filter windows using normal win32 calls, and every user is going to want to filter a different way (exact title match, containing match, regex match, etc..)

I'd be happy to merge a PR that adds more examples to the readme though. Something like this?

def move_window_by_name(title: str, target_desktop: int):
    """
        Move any window whose title equals 'title' to virtual desktop number 'target_desktop'
    """
    ...