*/*: Update WWW to use HTTPS for sourceforge.net projects

Homepage link is permanent redirected to its HTTPS counterpart
Issue reported by repology : https://repology.org/repository/freebsd/problems

Approved by:	portmgr (blanket)
PR:		274888

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.

Deprecate python2 and move to python3

Reported by:	swills

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

Add USES=compiler:c++11-lang to fix build on GCC architectures.

PR:		237103
Submitted by:	Piotr Kubaj <pkubaj at anongoth_dot_pl>

Change from gmake to cmake to support more ARCHs.

PR:		235376
Submitted by:	Ralf van der Enden <tremere at cainites_net>

Update to 1.0.0

Use ${COPYTREE_SHARE} instead of ${CP}

Reported by:	mat

- Remove explicit -march=native declaration.
- Mark ONLY_FOR_ARCHS=amd64 (it is temporary only until I'm ready
  with proper configure and Makefiles to set
  ARCH_FOR_p448=arch_ref64 ARCH_FOR_p25519=arch_ref64 for aarch64
  instead of arch_x86_64 and arch_32 for i386)
- Manually install headers (until we've proper build system in
  upstream as well)

Add security/libdecaf

Implementation of elliptic curve cryptography using the Montgomery
and Edwards curves Curve25519, Ed25519, Ed448-Goldilocks and
Curve448, using the Decaf / Ristretto encoding.

Approved by:	mat (mentor)