test_everything: Add tests for Regress type tests
test_everything: Add tests for Regress type tests

Add tests for all the data type handling tests of g-i's Regress module.

sfeltman/pygobject,davibe/pygobject,sfeltman/pygobject,pexip/pygobject,pexip/pygobject,GNOME/pygobject,davibe/pygobject,pexip/pygobject,davibe/pygobject,GNOME/pygobject,davibe/pygobject,GNOME/pygobject,sfeltman/pygobject