Improve Meson Build
Meson build tests depend on Autotools build tests' artifacts, namely Makefile.am
s.
This MR blocks MR !79.
Tests' tests/gtkdocentities.ent.in
, XML custom entities, is not configured.
Autotools Build generates a tests' coverage report. Meson should also do it.
Though GTK-Doc extra files are provided, tests do not use them.
Edited by Ahmed Baïzid