Bug fixed for masking window

Skipping frames was involved for filtering out the frames to save as ppt but was not meant for select region(mask) in the window.
This fixes the frameID to be chosen by mask window.

1.1.1

It will allow you to mask the non slides regions to help algorithm to compare changes between the frames by excluding those areas.

• uses OpenCV's selectROIs functionality

1.0.1

What's new?

Fixed some common issues.
Replaced youtube-dl to ytd-dl