filesystems/wimlib: Update 1.13.0 → 1.14.4

Changelogs:
1.13.1: https://github.com/ebiggers/wimlib/compare/v1.13.0...v1.13.1
1.13.2: https://wimlib.net/forums/viewtopic.php?t=530
1.13.3: https://wimlib.net/forums/viewtopic.php?t=543
1.13.4: https://wimlib.net/forums/viewtopic.php?t=554
1.13.5: https://wimlib.net/forums/viewtopic.php?t=570
1.13.6: https://wimlib.net/forums/viewtopic.php?t=612
1.14.0: https://wimlib.net/forums/viewtopic.php?t=658
1.14.1: https://wimlib.net/forums/viewtopic.php?t=662
1.14.2: https://wimlib.net/forums/viewtopic.php?t=675
1.14.3: https://wimlib.net/forums/viewtopic.php?t=681
1.14.4: https://wimlib.net/forums/viewtopic.php?t=737

Improve port:

• PORTVERSION → DISTVERSION;
• remove GNU_CONFIGURE_MANPREFIX;
• remove unnecessary dependencies from libxml2 ad fuse;
• pet portclippy;
• add INSTALL_TARGET=install-strip.

PR: 284111