Add a test for 'meson introspect --targets|--target-files'
Add a test for 'meson introspect --targets|--target-files'

v2:
Use asssertCountEqual for list comparison ignoring order

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