New supported image formats

dezoomify-rs can now open images directly from more museum, library, archive, and map viewers:

XLimage image servers (*.imgf / *.imgi metadata URLs)
Picturae Memorix (TopViewer) metadata, thumbnail URLs, and media API URLs
Neptune Labs FSI Server images, including pages that embed an FSI server
LizardTech ImageServer, Visual Library Server, and Hungaricana image services
Web Map Tile Service (WMTS) capabilities documents, cached ArcGIS MapServer imagery, and basemapUrl viewer links
pnav crop-based image services

Removals

The NYPL dezoomer has been removed: NYPL no longer serves tile metadata, so it could never succeed.
Special cases for pages that no longer exist or that no live site uses were removed: KBR multi-page XLimage viewers, three dead Zoomify sites (biblio.unibe.ch, bspe-p-pub.paris.fr, artandarchitecture.org.uk), the Fluid Engage XMLBroker, Flash-era zoomifyImagePath embeds, iframe following, and a few smaller unreachable variants. These had only ever been exercised by synthetic test fixtures.

Every URL pattern that remains is covered by a live test against a current website, so discovery no longer carries unreachable code.

Automatic discovery now follows redirects, viewer pages, and related metadata instead of requiring a direct tile URL.
IIIF URLs with proxies, query parameters, and nested image paths now produce usable tile URLs.
Images from the new formats get readable names derived from page titles and metadata.
Tile cache entries now distinguish client headers and decryption, avoiding wrong-cache hits.
Failed downloads no longer leave misleading output files behind.