[Feature Request] OPDS-pse support

[sunjam]

Progressive loading of comic books.

Its goal is to enrich the OPDS feed with information allowing the client to request a specific page of a document without having to download it completely. This extension was designed primarily for comic books, to allow reading them on connected devices without having to wait for the book to be completely downloaded. OPDS-PSE adds new attributes and conventions but does not break compatibility. OPDS-PSE feeds are still valid OPDS feeds.

What is OPDS-pse
Github repo tracking current development of OPDS-pse, maintained by developers of multiple Comic Book and Manga selfhosting projects.
Originally created by the Ubooquity project

Thanks for considering either way!

Related to #83