Misc meson fixes for using subproject dependencies
commit bb10dd45
meson: Use proxy-libintl subproject when needed and available
Such as on Windows with MSVC.
commit 77f921bc
meson: Add a fallback for the harfbuzz dependency
This meson port is not upstream yet, so a wrap file is not included.
Will be added if/when it gets upstreamed, else it will be added to
wrapdb.
Edited by Nirbheek Chauhan