sysutils/darling-dmg

filesystems: add new category for file systems and related utilities

The filesystems category houses file systems and file system utilities.
It is added mainly to turn the sysutils/fusefs-* pseudo-category into
a proper one, but is also useful for the sundry of other file systems
related ports found in the tree.

Ports that seem like they belong there are moved to the new category.
Two ports, sysutils/fusefs-funionfs and sysutils/fusefs-fusepak are
not moved as they currently don't fetch and don't have TIMESTAMP set
in their distinfo, but that is required to be able to push a rename
of the port by the pre-receive hook.

Approved by:	portmgr (rene)
Reviewed by:	mat
Pull Request:	https://github.com/freebsd/freebsd-ports/pull/302
PR:		281988

sysutils/darling-dmg: Update to 1.0.4

PR:		279406

devel/icu: update to 74.1

Changes:	https://github.com/unicode-org/icu/releases/tag/release-74-1
Reported by:	GitHub (watch releases)
PR:		274317
Exp-run by:	antoine (incomplete)
Approved by:	fluffy

devel/icu: update to 73.1

- Temporarily switch to GitHub auto archive (release artifacts are N/A atm)

Changes:	https://github.com/unicode-org/icu/releases/tag/release-73-1
Reported by:	GitHub (watch releases)
PR:		270422
Exp-run by:	antoine

Add sysutils/darling-dmg: FUSE module for .dmg files

PR:		267207