Gets detailed information about specified user-id

According to Identity API Specification [1], user can get details about herself with following request:

GET v2.0/users/<USER_ID>

This was not supported by SoftLayer driver, we are supporting this using SoftLayer_Account service's getCurrentUser [2] method.

[1] http://api.openstack.org/api-ref-identity.html#identity-v2
[2] http://sldn.softlayer.com/reference/services/SoftLayer_Account/getCurrentUser