added function to itemset: printWithOntology
added children information to NodeOntology;
added functions to NodeOntology: insertChild, getAmountParents, getAmountChildren, getDepth, setDepth, getHeight, setHeight, isObsolete
modified print to show more information
changed the way the information is obtained from the ontologies file
setting depth and height to NodeOntology
function getNode (to extract information)
using new struct to store measurements
added test file for tuples
tested ontology with other information
passing ontology information to Rules
changed comments