* mupdf: retire 1.6.x version recipes.
Superceded by 1.8.x.
* mupdf: retire broken 1.10.x version recipe.
Marked as broken since its introduction in 2017.
Only three packages use mupdf in-tree, and all of them use the
1.20.x version already.
* mupdf: retire 1.8 version recipe.
Nothing uses it in-tree (all use 1.20.x already).
* Mark 1.10~a as broken since there are still a few issues:
- libmupdf.so is not being built.
- libmupdfthird.a is being built but is empty.
- unlike 1.8, 1.10~a cannot be built on x88_gcc2 primary
arch because a dependency on harfbuzz was added. That
said, it might be possible to remove that dependency.
* Updated patches from 1.8 to 1.10~a.
* Added patches to fix includes for hb.h and hb-ft.h and to
skip unneeded workaround in source/fitz/load-jpx.c
* Merged/replaced old patch with one from @korli.
* Add dependency on libharfbuzz and libglib_2.0 too, as it is
required by harfbuzz.
* We were building a very outdated one.
* Rename 'fitz' to 'mupdf', since even the lib now uses that name
* Remove invalid "lib" provide as there is only a static library.
