Add meson build support
If you run
$ meson bin
$ ninja -C bin
Then you can run bin/crucible
similar to the autotools build support.
The order of tests changed, but I verified that sorting bin/crucible ls-tests
produces the same results with autotools and meson. I also saw the same test results with autotools and meson on a CFL platform.
I also tested building in another directory. For example
$ meson build
$ ninja -C build
$ build/crucible
I did not test ninja install
.