pyautogui should propagate the ImageNotFoundException message upward

[SteveOnorato]

pyautogui/pyautogui/__init__.py

Line 174 in b4255d0

raise ImageNotFoundException # Raise PyAutoGUI's ImageNotFoundException.

discards the exception message from pyscreeze. I find the "(highest confidence =x)" part of the message super-useful, so perhaps you'd be willing to propagate it through with something like:
raise ImageNotFoundException(str(ex)) # Raise PyAutoGUI's ImageNotFoundException.

(The exceptions I care about are initially thrown here: https://github.com/asweigart/pyscreeze/blob/eeca245a135cf171c163b3691300138518efa64e/pyscreeze/__init__.py#L256C70-L256C91 )

[gtmsingh]

I have created this PR for resolving this issue: #887