Add rackspace_resource.py

Change-Id: I0dea6e28ac26750840532b5a8d4e456ad8663433
Delete trailing whitespace

Change-Id: I9598c0014a396c0772392a1d2c304d9c182145fd
Rackspace auth nearly working.

Change-Id: I64fbbc75db798bbd6c18a82e28edfef15566c11f