Fix sources

[alfredclwong]

1. NIKON link changed
2. HOYA website (hoyaoptics.com) is down. New link found - @BrianGun could you verify that this link is OK? Added support in build script for direct AGF downloads (previously only supported ZIP archives).
3. Sumita link changed. @BrianGun there's a download option for discontinued glasses - do we want this?

Also extended ZIP file support to automatically pick the first AGF file in the downloaded ZIP archive.

[codecov-io]

Codecov Report

Merging #96 (6dfe488) into main (103c70f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #96   +/-   ##
=======================================
  Coverage   47.61%   47.61%           
=======================================
  Files          57       57           
  Lines        6620     6620           
=======================================
  Hits         3152     3152           
  Misses       3468     3468           

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[BrianGun]

Don't think we want to include discontinued Sumita glasses, or other manufacturers, in the default download. Let users get them in a separate step if they need them.