Extend the DataBuilder to allows the addition of multiple Tuples in one call

[teabot]

We use the DataBuilder to add Tuples to a new Data instance. In some cases it would be convenient to add multiple values in one call. I suggest that we add the following methods to DataBuilder:

DataBuilder addTuples(Iterable<Tuple> tuples)
DataBuilder addTuples(Tuple... tuples)
DataBuilder addTupleEntries(Iterable<TupleEntry> tupleEntries)
DataBuilder addTupleEntries(TupleEntry... tupleEntries)

[teabot]

I'll close the issue once we've made a release.