DDSJAVA11_ — DataReader.read should return an Iterable collection, not an Iterator

The current signature of read() (and take) is:

public Sample.Iterator<TYPE> read();

This operation should return an Interable collection, to be aligned with the C++PSM:

public LoanedSamples<T> read();

An Iterable collection can be used in a foreach loop, and it can be managed by a try-with-resources block to return the loan automatically. An Iterator doesn't take advantage of these features.