Changed some input parameter names
Updated TODO
Changed how hashtables initialization works. Now the given initial capacity will be guaranteed to be reached before the hashtable rehashes (load is now considered in the calculation).
Gets the reference of a value. Useful for primitive values like int, char, double, size_t, etc.
The only collections with this function are associative collections (when getting the value) and lists (working as an update method).
Other collections have not received this function because they are either sorted by the values so changing it would break the structure or because removing and adding back again the element is done instantaneously.
Leonardo