OCP resource model yang file needs cleanup

ocpplugin/applications/ocp-service/src/main/yang/ocp-resourcemodel.yang, which is the yang file describing the supported OCP resource model objects, contains a large number of "// config false;" comments which should be removed for better readability.

Besides, it'd be better to change the description of the yang file from "OCP service resourcemodel" to "OCP Resource Model" for clarity. And please note that, in other yang files, the two fields "organization" and "contact" have been removed to avoid showing vendor trademarks, logos, product names, etc; this yang file should be modified accordingly.