mtest: improve colorization
mtest: improve colorization

Instead of colorizing the whole status line, only colorize the word
representing the outcome of the test (SKIP, OK, FAIL, etc.).  This
is less intrusive, so the patch also does the following changes:

- colorize OK and EXPECTEDFAIL, respectively as green and yellow

- colorize the summary of failures as well.

Signed-off-by: Paolo Bonzini <69d3ebcf5ee4e7f05a50dc23cd96655b730804b4@redhat.com>

pexip/meson,jpakkane/meson,jpakkane/meson,mesonbuild/meson,QuLogic/meson,pexip/meson,pexip/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,mesonbuild/meson,pexip/meson,pexip/meson,QuLogic/meson,QuLogic/meson,pexip/meson,pexip/meson,jpakkane/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,pexip/meson,QuLogic/meson,QuLogic/meson,jpakkane/meson,QuLogic/meson,mesonbuild/meson,QuLogic/meson,jpakkane/meson,jpakkane/meson,jpakkane/meson,QuLogic/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,mesonbuild/meson,QuLogic/meson,pexip/meson