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.

Fix CONFLICTS_INSTALL in archivers, astro, and audio

Approved by:	portmgr (implict)

Update CONFLICTS definitions in categories a* to c*

Update the CONFLICTS definitions of ports in the following categories:

- accessibility
- archivers
- audio
- benchmarks
- biology
- cad
- chinese
- comms
- converters

An attempt has been made to use generic conflicts patterns that do not
have to be updated whenever a new version of a conflicting port is
added to the ports system.

There is a misunderstanding that the port being built/installed has to
be omitted from the conflicts pattern. This is not true - the port
being built is implicitly non-conflicting due to logic in bsd.port.mk.

Approved by:	portmgr (implicit)

Fix CONFLICTS entries in archivers, astro, audio

Fix conflicts entries based on a script that searches for duplicate
files installed by several ports.

Some patters seem to make ports conflict with themselves, but this is
actually not the case due to the check-*-conflicts logic implemented
in bsd.port.mk, which excludes self-conflicts.

PHP based ports have been ignored in this commit as requested by the
committers currently working on the php-8.1 import.

Approved by:	portmgr (implicit)

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

Remove # $FreeBSD$ from Makefiles.

USES=lua gained flavors.

Ports using USES=lua:module or lua:flavors will be flavored.  A range of
supported lua versions can be set using XX-YY (or XX-, or -YY, or simply ZZ)
for ports not supporting all lua versions.

USES=lua sets LUA_FLAVOR that needs to be used on all dependencies of
flavored lua ports, in a similar way as PHP or Python flavors.

PR:		245038
Submitted by:	andrew tao11 riddles org uk
Reviewed by:	mat, kevans, russ haley gmail com
Approved by:	mat (portmgr)
Differential Revision:	https://reviews.freebsd.org/D16494

archivers/lua-lzlib: add new port

PR:		208514
Submitted by:	Daniel Ylitalo <daniel@blodan.se> (based on)

Lua bindings to the ZLib compression library.

https://github.com/LuaDist/lzlib