Add option to wait for RackConnect automation

Add option to wait for RackConnect automation to complete. This option refreshes the accessIPv4 attribute after waiting for the RC metadata fields to be updated to say 'DEPLOYED'. It also had to set :no_passwd_lock to true, as fog's rackspace compute provider (by default) locks the root account on a new server. See https://github.com/fog/fog/blob/27eec8700f4b6b990442bc9715dc27edc6b47a66/lib/fog/rackspace/models/compute_v2/servers.rb#L30-L31 for more information on that.