SHACLC: tighten grammar re nodeValue, propertyValue

[VladimirAlexiev]

@jeswr
Currently nodeValue, propertyValue take the same values (iri, literal, array)
regardless in which nodeParam, propertyParam they are used.

So you can write nonsense like deactivated <foo> or even minInclusive (<foo> <bar>).

Tighten the grammar to provide appropriate value type per property.
This way LSP (#50) can validate and guide the user into entering an appropriate value.