Generic Identifiers are not Parsed

[larvata]

mpd-parser only parses the protection system specific identifiers.(in src/inheritAttributes.js)

I'd like to extract the kid with mpd-parser but the generic identifier such as urn:mpeg:dash:mp4protection:2011 is not parsed.

https://dashif.org/identifiers/content_protection/

you can test with this mpd:
https://contents.pallycon.com/bunny/stream.mpd