Move the XAccessibleComponentTester and XAccessibleContextTester classes from toolkit to test, so they can be reused for a11y tests in other modules. Change-Id: I9a4bb3f96d92b05d58a5e8afe7f86b5eb2fd0c38 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/182967 Reviewed-by: Michael Weghorn <m.weghorn@posteo.de> Tested-by: Jenkins