feat: parse mp4protection ContentProtection tags

videojs / mpd-parser

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Description

In an effort to enhance our HDCP handling in DASH we need to parse ContentProtection tags with the scheme urn:mpeg:dash:mp4protection:2011. These tags when defined with the urn:mpeg:cenc:2013 namespace contain a cenc:default_KID attribute that we can use to determine from the MediaKeySession, which playlists we have a usable license for.

See: https://dashif-documents.azurewebsites.net/Guidelines-Security/master/Guidelines-Security.html#CPS-default_KID or Reference: ISO_IEC 23009-1_2022 section 5.8.5.2

Changes

Added the urn:mpeg:dash:mp4protection:2011 schemeId to the keySystems map so we parse ContentProtection tags with that scheme.
Fixed tests.

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (56eee17) 94.68% compared to head (d771b45) 93.61%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #179 +/- ## ========================================== - Coverage 94.68% 93.61% -1.07% ========================================== Files 19 19 Lines 846 846 Branches 258 258 ========================================== - Hits 801 792 -9 - Misses 45 54 +9 ```

videojs / mpd-parser