audio/espeak-ng: Moved man to share/man

Approved by:    portmgr (blanket)

audio/espeak-ng: fix build with clang 16

Since clang 16 (and gcc 11) the default C++ standard is now gnu++17.
Because audio/espeak-ng's Makefile does not explicitly set its C++
standard, this leads to an error:

  src/speechPlayer/src/speechWaveGenerator.cpp:197:56: error: reference to
'sample' is ambiguous
          unsigned int generate(const unsigned int sampleCount, sample*
sampleBuf) {
                                                                ^
  src/speechPlayer/src/sample.h:23:3: note: candidate found by name lookup is
'sample'
  } sample;
    ^
  /usr/include/c++/v1/__algorithm/sample.h:95:17: note: candidate found by name
lookup is 'std::sample'
  _SampleIterator sample(_PopulationIterator __first,
                  ^

This is because speechWaveGenerator.cpp has "using namespace std;" at
the top, so "sample" can match both "std::sample" (from <algorithm>) and
"struct sample" (from sample.h). Qualify "sample" as "::sample" to work
around the problem.

PR:		271486
Approved by:	maintainer timeout (2 weeks)
MFH:		2023Q2

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.

audio: remove 'Created by' lines

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

  *  <dmagda+libsamplerate@ee.ryerson.ca>
  *  <trasz@FreeBSD.org>
  *  Adam Weinberger
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Aleksander Fafula <alex@bsdguru.org>
  *  Alex Allan <alex@kamaz.org.uk>
  *  Alexander Botero-Lowry <alex@foxybanana.com>
  *  Alexander Kojevnikov <alexander@kojevnikov.com>
  *  Alexander Nedotsukov <bland@FreeBSD.org>
  *  Alexander Vereeken <Alexander88207@protonmail.com>

audio/espeak-ng: add espeak to CONFLICTS_INSTALL

The espeak package has been replaced by espeak-ng, but since the pkg
command does not understand that the latter replaces the former, it is
possible that "pkg upgrade" tries to install espeak-ng on a system
that already has espeak installed.

Create and plan to keep the CONFLICTS_INSTALL entry for some time in
order to let the pkg command know that it cannot install espeak-ng
without prior deinstallation of espeak.

audio/espeak: rename to audio/espeak-ng

The stale espeak repository has been forked and development has
restarted under the name espeak-ng.