scalar arrays initialize for nodeIDSets
nodeSetIDs work for multivariate + methods work
cleanup
nodeVectors work for more efficient backward compatibility, but not fully functioning
Merge branch 'Var2G_ID_maps' into devel

Conflicts:
	.gitignore
	packages/nimble/R/.Rapp.history
	packages/nimble/R/BUGS_model.R
	packages/nimble/R/TEMP_conjugateSamplerDefinitions.R
	packages/nimble/R/types_modelValuesAccessor.R
	packages/nimble/R/types_modelVariableAccessor.R
	packages/nimble/inst/CppCode/ModelClassUtils.o
	packages/nimble/inst/CppCode/NamedObjects.o
	packages/nimble/inst/CppCode/RcppUtils.o
	packages/nimble/inst/CppCode/Utils.o
	packages/nimble/inst/CppCode/accessorClasses.o
	packages/nimble/inst/CppCode/dists.o
	packages/nimble/inst/CppCode/nimDists.o