games/libretro-shaders-glsl: Update to g20260330 and adopt port

* Adopt port
* Update COMMENT and pkg-descr to point out that the shaders originate
  from the libretro project, but that they can also be used by other
  projects, e.g. ScummVM.
* Use short hash for GH_TAGNAME. This follows the Porter's Handbook more
  closely.
* Set DATADIR to its actual non-standard directory.
* The shaders are architecture-independend and there's nothing to build,
  so set NO_ARCH and NO_BUILD.
* Use COPYTREE_SHARE for installing to ensure proper file ownership and
  permissions, and to not require the make binary. In this case do not
  extract unneeded build and CI files by excluding them via
  EXTRACT_AFTER_ARGS.
* Remove obsolete Makefile patch.

Changelog:
https://github.com/libretro/glsl-shaders/compare/e66776c...bf52cc8

PR:		294140

games/libretro-shaders-glsl: update to g20231025

PR:		274647

*/*: Release ports from maintainership

Maintainer releases all his ports.

PR:		266871
Reported by:	unrelentingtech <greg@unrelenting.technology>

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

games/retroarch: update to 1.8.5 (and add WAYLAND option, fix powerpc64, etc.)

This is mostly Greg's patch,
I have added the new ports to games/Makefile (missing from PR, SUBDIR+=),
and fixed a few spaces-vs-TAB glitches in the makefile,
and reformatted the pkg-descr, and changed libretro-shaders-slang/pkg-descr to:

| Vulkan GLSL RetroArch shader system
|
| WWW: https://github.com/libretro/slang-shaders

v1:

Here's 1.8.5.