This avoids cyclic subproject configuration when the 'harfbuzz' feature is
enabled, or `--wrap-mode=forcefallback` is used, but HarfBuzz is built as a
subproject. HarfBuzz does the same and disables HarfBuzz support when
configuring FreeType as a subproject.
* meson.build (harfbuzz_dep): Implement it.
* subprojects/harfbuzz.wrap: New file.
* .gitlab-ci.yml [windows meson]: Use latest version of the meson 0.59
series, which has a necessary bug fix to make CI work.
This is for future changes with Meson, which doesn't allow a
different name for its `subprojects` directory. Having both a
`submodules` and a `subprojects` directory is confusing.
* .gitmodules, autogen.sh (copy_submodule_files, DLG_INC_DIR,
DLG_SRC_DIR): Updated.
* builds/toplevel.mk (<top-level>, do-dist),
builds/windows/vc2010/script.bat: Updated.
* src/tools/no-copyright: Updated.