Add plugin czech tv

[rubickcz]

Hello,
I have written a plugin for Czech TV (Česká televize). It is possible to watch live channels and also most of archived videos.

Please review my code. This is my first pull request ever and I've been programming in Python just for 2 months, so I apologize for possible problems.

Thanks.

[rubickcz]

Why does your url begin with hlsvariant://? If you use just http, it works:
livestreamer http://www.ceskatelevize.cz/ct24#live best

[karlo2105]

@ rubickcz
Yes you are right it's working fine. ;)
You did great job, but unfortunatelly it doesn't seem to allow proxy to get over geoblocking restriction. Only CT24 works abroad.

[rubickcz]

@karlo2105 Thanks. Yes, other channels except CT24 are blocked abroad. It think I can't do much about it. In the Czech Republic, you can watch all these channels:

• CT1 - http://www.ceskatelevize.cz/ct1/zive/
• CT2 - http://www.ceskatelevize.cz/ct2/zive/
• CT24 - http://www.ceskatelevize.cz/ct24/
• CT sport - http://www.ceskatelevize.cz/sport/zive-vysilani/
• CT Decko - http://decko.ceskatelevize.cz/zive/
• CT Art - http://www.ceskatelevize.cz/art/zive/

[karlo2105]

@rubickcz
You are welcome to join livestreamer fork called streamlink if you want to contribute in further developing.
I proposed to rename your Czech TV plugin into official name Ceskatelevize to merging into streamlink repositories.