The `id` property of the `permissions` on a space root does not
longer have that special `u:<userid>` format any. It now has the
same format as the permission id on "normal" driveItems.
* divide shareNg test suite into 2 parts
* update directory name in expected failure file
* separate apisharingNg suite
* separate shareNg test suite to 3 parts
* remove unused context files from test suites