define range of data props, use standard datatypes

[VladimirAlexiev]

(A subset of https://github.com/Sveino/Inst4CIM-KG/issues/29 that applies to all data props, not just numeric ones).

• [x] define range of all datatype props
• [x] use standard XSD datatypes instead of CIM ones
  • map CIM datatypes to standard ones (I have such mapping)
  • get rid of CIM datatypes (they can be found as rdf:type rdfs:Class ; cims:stereotype "Primitive")
• [x] define them as owl:DatatypeProperty (it doesn't mean you're going away from RDFS, just being more specific about the nature of the prop)

Change from this:

cim:IdentifiedObject.mRID
        rdf:type           rdf:Property ;
        cims:dataType      cim:String ;

to this:

cim:IdentifiedObject.mRID
        rdf:type           owl:DatatypeProperty ;
        rdfs:range      xsd:string ;

[VladimirAlexiev]

• https://github.com/Sveino/Inst4CIM-KG/issues/74 shows the mapping table
• https://github.com/Sveino/Inst4CIM-KG/issues/38 is a more complicated process to properly describe datatype props that are numeric and have unit of measure

[VladimirAlexiev]

fix02-datatypes-74.ru (will commit shortly)