devel/libxsd-frontend2.1.0_1

textproc/xerces-c3: Update to 3.3.0

- Bump PORTREVISION of dependent ports for shlib change

Changes:	https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=10510&version=12355023

devel/libxsd-frontend: fix build with libc++ 19

As noted in the libc++ 19 release notes [1], std::char_traits<> is now
only provided for char, char8_t, char16_t, char32_t and wchar_t, and any
instantiation for other types will fail.

This causes www/qt5-webengine to fail to compile with clang 19 and
libc++ 19, resulting in errors similar to:

  /usr/include/c++/v1/string:820:42: error: implicit instantiation of undefined template 'std::char_traits<XSDFrontend::Bits::None>'
    820 |   static_assert(is_same<_CharT, typename traits_type::char_type>::value,
        |                                          ^
  /wrkdirs/usr/ports/devel/libxsd-frontend/work/libxsd-frontend-2.1.0/libxsd-frontend/xml.hxx:100:23: note: in instantiation of template class 'std::basic_string<XSDFrontend::Bits::None>' requested here
    100 |       NarrowString r (s);
        |                       ^
  /usr/include/c++/v1/__fwd/string.h:23:29: note: template is declared here
     23 | struct _LIBCPP_TEMPLATE_VIS char_traits;
        |                             ^

The `Bits::None` construct used by libxsd-frontend is meant to disable
unwanted conversions, but it no longer works if `std::char_traits>` is
undefined for this type.

Fix it by removing the `Bits` namespace and only enabling the converting
constructors if the first type of `StringTemplate` is `wchar_t`.

[1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals

PR:		281478
Approved by:	maintainer timeout (2 weeks)
MFH:		2024Q3

devel/xsd: Update to 4.2.0

Add two new support ports: devel/libxsd and devel/libxsd-frontend.

The runtime library was moved out of devel/xsd to devel/libxsd which is
why the headers are gone. The compiler frontend, which following a
previous comment in the devel/xsd Makefile suggesting that it should be a
separate port, but more out of necessity for compatibility with the
build2 build system, is now devel/libxsd-frontend.

The examples are now a separate distribution and I didn't really see any
urgent need to reincorporate them, as they would require yet another port
that the majority of our userbase would probably not be interested in as
xsd is ultimately just a build dependency for textproc/libkolabxml.

Update devel/libcutl to 1.11.0 due to header relocation.

Update textproc/libkolabxml to HEAD for C++11 compatibility.

Differential Revision:	https://reviews.freebsd.org/D43080