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.

benchmarks: remove 'Created by' lines

A big Thank You to the original contributors of these ports:

  *  Alexander Logvinov <ports@logvinov.com>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Alexey V. Degtyarev
  *  Andreas Kohn <andreas@syndrom23.de>
  *  Andrew Shevtsov <nyxo@dnuc.polyn.kiae.su>
  *  Andrey Zakhvatov <andy@FreeBSD.org>
  *  Andy Clark <andrewclarkii@gmail.com>
  *  Antonio Carlos Venancio Junior (<antonio@inf.ufsc.br>)
  *  Bill Fumerola <billf@chc-chimes.com>
  *  Brad Davis <brd@FreeBSD.org>
  *  Bruce A. Mah <bmah@FreeBSD.org>

benchmarks/lzbench: fix the port's build on ARM and RISC-V

While here, mute the compiler when it is being called inside the
GNU make's $(shell ...) context: these errors do not cause build
failures (they are not propagated to the caller) but can confuse
careless readers of the build log.

PR:	260625

Remove # $FreeBSD$ from Makefiles.

Mark BROKEN on riscv64.

Approved by:	portmgr (tier-2 blanket)
Obtained from:	lonesome.com build testing

Update to version 1.8.1 which does not require -fcommon workaround.

- Unbreak the build with -fno-common (Clang 11, GCC 10)
- Include upstream bug report for reference and tracking

Reported by:	pkg-fallout

Update `benchmarks/lzbench' to version 1.8.

Reported by:	portscout

- Update `benchmarks/lzbench' to version 1.7.4
- Install README.md file as part of documentation
- Garbage-collect no longer useful patches

Reported by:	portscout

Bump PORTREVISION for ports depending on the canonical version of GCC
as defined in Mk/bsd.default-versions.mk which has moved from GCC 8.3
to GCC 9.1 under most circumstances now after revision 507371.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, everything INDEX-11 shows with a dependency on lang/gcc9 now.

PR:		238330

Bump PORTREVISION for ports depending on the canonical version of GCC
defined via Mk/bsd.default-versions.mk which has moved from GCC 7.4 t
GCC 8.2 under most circumstances.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, as a double check, everything INDEX-11 showed depending on lang/gcc7.

PR:		231590

Bump PORTREVISION for ports depending on the canonical version of GCC
in the ports tree (via Mk/bsd.default-versions.mk and lang/gcc) which
has now moved from GCC 6 to GCC 7 by default.

This includes ports
 - featuring USE_GCC=yes or USE_GCC=any,
 - featuring USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and those
 - with USES=compiler specifying one of openmp, nestedfct, c11, c++0x,
   c++11-lib, c++11-lang, c++14-lang, c++17-lang, or gcc-c++11-lib.

PR:		222542

Do not link the program statically, there is no need for this.

Obtained from:	Arch Linux package

Try to unbreak on SSE4.1-capable machines running in 32-bit mode.

Reported by:	pkg-fallout

Unbreak the build against Clang 6.0.0 by allowing certain warnings while I'm
not in the mood for fixing them (technically, `-Wno-c++11-narrowing' is only
required for Clang 6 and later, but since it does not apparently upset other
compilers, pass it unconditionally rather than complicate Makefile logic).

Add a port of lzbench, an in-memory benchmark of open-source LZ77/LZSS/LZMA
compressors.  It joins all compressors into a single executable.  At the
beginning, an input file is read to memory.  Then all compressors are used
to compress and decompress the file and decompressed file is verified.

WWW: https://github.com/inikep/lzbench
Add a port of libdeflate, a library for fast, whole-buffer DEFLATE-based
compression and decompression.

WWW: https://github.com/ebiggers/libdeflate

Because GitHub releases (tarballs) are not fetched with correct modification
time, set TIMESTAMP to 1515146810 which corresponds to commit 6c4ad37 tagged
as this release.