Add Adobe HDS streaming support

Submitted by Bastien Nocera @hadess

Link to original bug (#728497)

Description

Similar to Microsoft's MSS and Apple's HLS, Adobe Flash now uses HDS (HTTP Dynamic Streaming).

After downloading a manifest file, such as this one 1, we get something like [2].

This file can then be processed by a script like this one:
https://github.com/K-S-V/Scripts/blob/master/AdobeHDS.php

I could not find much more information about the protocol though.

[2]:

2.0 5000 ``/1404/ZAPPING_EMISSION_140417_AUTO_24118_169_video_,MOB,L,H,HD,.mp4.csmil_0`` ``recorded`` vod ``350.435`` ``0.000`` ``AAAAi2Fic3QAAAAAAAAAAQAAAAPoAAAAAAAFWOMAAAAAAAAAAAAAAAAAAQAAABlhc3J0AAAAAAAAAAABAAAAAQAAADoBAAAARmFmcnQAAAAAAAAD6AAAAAADAAAAAQAAAAAAAAAAAAAXcAAAADoAAAAAAAU38AAAIPMAAAAAAAAAAAAAAAAAAAAAAA==`` ``AAAAi2Fic3QAAAAAAAAAAQAAAAPoAAAAAAAFWOMAAAAAAAAAAAAAAAAAAQAAABlhc3J0AAAAAAAAAAABAAAAAQAAADoBAAAARmFmcnQAAAAAAAAD6AAAAAADAAAAAQAAAAAAAAAAAAAXcAAAADoAAAAAAAU38AAAIPMAAAAAAAAAAAAAAAAAAAAAAA==`` ``AAAAi2Fic3QAAAAAAAAAAQAAAAPoAAAAAAAFWOMAAAAAAAAAAAAAAAAAAQAAABlhc3J0AAAAAAAAAAABAAAAAQAAADoBAAAARmFmcnQAAAAAAAAD6AAAAAADAAAAAQAAAAAAAAAAAAAXcAAAADoAAAAAAAU38AAAIPMAAAAAAAAAAAAAAAAAAAAAAA==`` ``AAAAi2Fic3QAAAAAAAAAAQAAAAPoAAAAAAAFWOMAAAAAAAAAAAAAAAAAAQAAABlhc3J0AAAAAAAAAAABAAAAAQAAADoBAAAARmFmcnQAAAAAAAAD6AAAAAADAAAAAQAAAAAAAAAAAAAXcAAAADoAAAAAAAU38AAAIPMAAAAAAAAAAAAAAAAAAAAAAA==`` `` ``AgAKb25NZXRhRGF0YQgAAAAMAAhkdXJhdGlvbgBAdeb1wo9cKQAFd2lkdGgAQIQAAAAAAAAABmhlaWdodABAdoAAAAAAAAANdmlkZW9kYXRhcmF0ZQBAaN2SEF73ugAJZnJhbWVyYXRlAEA4/1xdBkWCAAx2aWRlb2NvZGVjaWQAQBwAAAAAAAAADWF1ZGlvZGF0YXJhdGUAQF9p1G1n234AD2F1ZGlvc2FtcGxlcmF0ZQBA5YiAAAAAAAAPYXVkaW9zYW1wbGVzaXplAEAwAAAAAAAAAAZzdGVyZW8BAQAMYXVkaW9jb2RlY2lkAEAkAAAAAAAAAAhmaWxlc2l6ZQBBax5YQAAAAAAACQ==`` `` `` ``AgAKb25NZXRhRGF0YQgAAAAMAAhkdXJhdGlvbgBAdeb1wo9cKQAFd2lkdGgAQIQAAAAAAAAABmhlaWdodABAdoAAAAAAAAANdmlkZW9kYXRhcmF0ZQBAdg6cRALvywAJZnJhbWVyYXRlAEA4/1xdBkWCAAx2aWRlb2NvZGVjaWQAQBwAAAAAAAAADWF1ZGlvZGF0YXJhdGUAQF9p1G1n234AD2F1ZGlvc2FtcGxlcmF0ZQBA5YiAAAAAAAAPYXVkaW9zYW1wbGVzaXplAEAwAAAAAAAAAAZzdGVyZW8BAQAMYXVkaW9jb2RlY2lkAEAkAAAAAAAAAAhmaWxlc2l6ZQBBc/3/UAAAAAAACQ==`` `` `` ``AgAKb25NZXRhRGF0YQgAAAAMAAhkdXJhdGlvbgBAdeb1wo9cKQAFd2lkdGgAQIQAAAAAAAAABmhlaWdodABAdoAAAAAAAAANdmlkZW9kYXRhcmF0ZQBAh4Khh0FSigAJZnJhbWVyYXRlAEA4/1xdBkWCAAx2aWRlb2NvZGVjaWQAQBwAAAAAAAAADWF1ZGlvZGF0YXJhdGUAQF9p1G1n234AD2F1ZGlvc2FtcGxlcmF0ZQBA5YiAAAAAAAAPYXVkaW9zYW1wbGVzaXplAEAwAAAAAAAAAAZzdGVyZW8BAQAMYXVkaW9jb2RlY2lkAEAkAAAAAAAAAAhmaWxlc2l6ZQBBglbCiAAAAAAACQ==`` `` `` ``AgAKb25NZXRhRGF0YQgAAAAMAAhkdXJhdGlvbgBAdeb1wo9cKQAFd2lkdGgAQIQAAAAAAAAABmhlaWdodABAdoAAAAAAAAANdmlkZW9kYXRhcmF0ZQBAlQ/tW2vHAQAJZnJhbWVyYXRlAEA4/1xdBkWCAAx2aWRlb2NvZGVjaWQAQBwAAAAAAAAADWF1ZGlvZGF0YXJhdGUAQF9p1G1n234AD2F1ZGlvc2FtcGxlcmF0ZQBA5YiAAAAAAAAPYXVkaW9zYW1wbGVzaXplAEAwAAAAAAAAAAZzdGVyZW8BAQAMYXVkaW9jb2RlY2lkAEAkAAAAAAAAAAhmaWxlc2l6ZQBBjsfX6AAAAAAACQ==`` `` ``