Extend ReSpec to support oslc:range and oslc:allowedValues for enumerations

OSLC ResourceShapes defines oslc:allowedValues and oslc:range on oslc:Property which can be used define enumeration types and enumeration literals. An rdfs:Class is defined for the enumeration, and instances of this class are defined to give URIs and labels to possible enumeration instances.

oslc:range can be set to the enumeration class, and oslc:allowValues can be used to list the URIs of the specific enumeration literals.

ReSpec should be modified to generate HTML tables for the enumeration class and the enumeration literals. for oslc:range and oslc:allowedValues.