add verbose parameter

[iaacornus]

I added a verbose parameter to show the download speed and other processes happening in download mode which can be done using -v or --verbose

[devel@fedora spongebob-cli]$ spongebob-cli -da -v
Downloading all fetched episodes : 338
Downloading episode 1
[generic] SpongeBob-SquarePants-Reef-Blower: Requesting header
[download] SpongeBob-SquarePants-Reef-Blower-SpongeBob-SquarePants-Reef-Blower.mp4 has already been downloaded
[download] 100% of 28.57MiB

Download complete!
Downloading episode 2
[generic] SpongeBob-SquarePants-Tea-at-the-Treedome: Requesting header
[download] Resuming download at byte 523264

and for single downloads :

[devel@fedora spongebob-cli]$ spongebob-cli -d 4 -v
Downloading episode 4
[generic] SpongeBob-SquarePants-Bubblestand: Requesting header
[download] SpongeBob-SquarePants-Bubblestand-SpongeBob-SquarePants-Bubblestand.mp4 has already been downloaded
[download] 100% of 77.02MiB

[iaacornus]

you can make more tests and modification to a degree you see it fit. I gave it enough test to confirm that it doesn't crash other functions and else.

[trakBan]

Sorry i just saw this now, i will test it.

[trakBan]

This seems unstable. It now plays only half the videos. I dont know if this is a problem in my end or not. Today i will try to see whats the problem.

Also this isnt only an error when -p gets passed, but when you also try to play a video without arguments.

tb@trak:/home/tb/programming/spongebob-cli-testing$ python3 spongebob-cli -p 43
[ffmpeg] https: HTTP error 503 Service Unavailable
Failed to open https://www.megacartoons.net/video/SpongeBob-SquarePants-Squids-Day-Off.mp4.
[ytdl_hook] ERROR: Unable to download webpage: HTTP Error 503: Service Unavailable (caused by <HTTPError 503: 'Service Unavailable'>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output. 
[ytdl_hook] youtube-dl failed: unexpected error occurred