fontconfig: Update to version 2.15.0

fontconfig: Update to version 2.15.0

- Update from version 2.14.1 to 2.15.0
- Update of rootfile
- Autogen no longer required
- fcobjshash.h is no longer in tarball from version 2.13.1
- Changelog
    2.15
	      Do not change the order of orth files
	      Convert tabs to spaces
	      Convert more tabs to spaces in docs
	      src/meson.build: Store correct paths to fontconfig.pc.
	      Fix a typo in description for HAVE_STDATOMIC_PRIMITIVES
	      Report more detailed logs instead of assertion.
	      Add some missing constant names for weight.
	      Adujst indentation between programlisting in fontconfig-user.sgml
	      Bump version to 2.14.2
	      Clean up unused code
	      Add another test case for flatpak
	      Update 65-nonlatin.conf for macOS
	      Change the order of the properties to the order of fontconfig cache format
	      Add missing property descriptions
	      Add namedinstance property
	      Remove the problematic language from code and doc
	      Fix a typo
	      Fix a typo for FcCharSetDelChar doc
	      Fix a typo in scalable property
	      Use 'outline' instead of 'scalable' for bitmaps
	      Add more docs about selectfont
	      Rework CI implementation
	      Fix a typo
	      Rework CI implementation v2
	      Apply a fix of ci-templates
	      Fix uninitialized memory access when failing memory allocation.
	      Create a symlink with relative path
	      Fix an error of "initializer element is not constant"
	      Update CaseFolding.txt to Unicode 15.1
	      Update the encoding table for Simplified Chinese
	      Retry to decode strings in the name table as UTF-16BE in some cases.
	      Work around decoding strings in Macintosh encoding for the name table.
	      Add iconv detection for meson build
	      .gitlab-ci: Update
	      CI: Update
	      CI: static build only for rawhide
	      Use memmove instead of memcpy
	      Rename README to NEWS and add README.md
	      Update so version
	      Fix leak of `reason` in _FcConfigParse when not complaining
	      Ignore LC_CTYPE if set to "UTF-8"
	      Some doc clarifications
	      Add FC_FONT_WRAPPER
	      Detect standalone CFF fonts for FC_FONT_WRAPPER
	      Add anp.orth, bhb.orth, hif.orth, mag.orth, raj.orth, and the.orth
	      Add {agr,ayc,bem,ckb,cmn,dsb,hak,lij,lzh,mfe,mhr,miq,mjw,mnw,nan,nhn,niu,rif,sgs,shn,szl,tcy,tpi,unm,wae,yue,yuw}.orth
	      Change index type to 16 bit and bump cache version to 9
	      Expand ~ in glob
	      Add optional 11-lcdfilter-none configuration
	      Fix filepaths added when scanning with sysroot
	      Fix false-positive CFI failure
	      In fcfreetype.c, `GetScriptTags`: fix `use_of_uninitialized_value` and return the correct number of parsed tags in case the font file contains less tags than indicated.
	      meson: Support any compiler with gcc or msvc argument syntax
	      fix typo
	      Reload MM/VF metadata for each font face in font collection
	      fixed typos in fc-conflist.sgml
	      Add aliases for Helvetica LT Std
    2.14.2
	      Fix the build issue on meson when -g option is added to c_args
	      Store artifacts for meson windows CI
	      Add FC_DESKTOP_NAME property
	      Add --with-default-sub-pixel-rendering option
	      Update po-conf/POTFILES.in
	      Ignore null pointer on Fc*Destroy functions
	      Convert tabs to spaces
	      Convert more tabs to spaces in docs
	      src/meson.build: Store correct paths to fontconfig.pc.
	      Fix a typo in description for HAVE_STDATOMIC_PRIMITIVES
	      Report more detailed logs instead of assertion.
	      Add some missing constant names for weight.
	      Adujst indentation between programlisting in fontconfig-user.sgml
	      meson: modify gperf test to remove sh dependency
	      meson: Update freetype2 git repository to upstream
	      Ignore LC_CTYPE if set to "UTF-8"
	      Expand ~ in glob
	      fix typo

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>