FEATURE: Option to allow scanning of google drive folder events.

[KurtzPT]

Describe the problem
When I move a folder to one of the monitored folders in google drive, this folder is ignored and thus all video files inside it won't get scanned into Plex.

Describe any solutions you think might work
Add a new flag on config file, that allows a user to skip this validation in file drive.py. Include this folder and all the contents of it to the queue of plex scans.