feat(ngBindOnceDirs.js): implementation of simple bindOnce directives #5408

Signed-off-by: Josh Kurz <josh.kurz@turner.com>

fix(ngBindOnceDirsSpec.js): testing everything

Signed-off-by: Josh Kurz <josh.kurz@turner.com>
fix(ngBindOnceDirs.js): fixed the e2e test and msie on the spec

Signed-off-by: Josh Kurz <josh.kurz@turner.com>