lib/*.h: ensure that all includes will be there

Headers should be self-contained, having all includes they need
to built. Add the missing ones (alphabetically sorted).

Checking what includes were missed was done with the help of
this small script:

    for i in $(ls lib/*.h|grep -v igt_freebsd.h|sort); do
	gcc -I . -I build/ -I include/ -I ./include/drm-uapi/ -I lib/ -I /usr/include/cairo/ -I /usr/include/glib-2.0 -I /usr/lib64/glib-2.0/include/ -c $i
    done

While at this also sorted includes and added a missing logic
to detect duplicated includes at igt_tread.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Reviewed-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>

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