add recipe cim-schema, cim-schema-docs and license file DMTF.

Common Information Model (CIM) is a model for describing overall
management information in a network or enterprise environment. CIM
consists of a specification and a schema. The specification defines the
details for integration with other management models. The schema
provides the actual model descriptions.

Signed-off-by: Yao Xinpan <yaoxp@cn.fujitsu.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>