Implement Episode.chapters and Chapter #109
Description
Corresponds to <psc:chapters> containing one or more <psc:chapter> elements.
The XML namespace of psc is http://podlove.org/simple-chapters/
Spotify has implemented full support for the Podlove Simple Chapters specification, according to their own specification. Apple uses a proprietary format in the media files that can only be set through GarageBand, which has not seen any public documentation, so screw them.
The Podlove Simple Chapters specification says:
The format simply expresses a straightforward, non-hierarchical linear structure by linking chapter titles and an optional hypertext reference to specific points in time. It is intended to be easy to author, easy to parse and easy to present to the user.
See the specification for the complete description.
I don't think we will implement support for external chapter information.
I imagine Episode.chapters will be a list containing of Chapter instances. Each Chapter instance represents one point in time with metadata, corresponding to one <psc:chapter> element.