BULK Upload support

[zubairov]

Sometimes it's important to load data not sequentially but as a BULK. Currently INSERT action inserts rows one-by-one therefore not efficient with large amounts of data.

[jhorbulyk]

Would this bulk action not rely on the existence of batching?

[zubairov]

TBH with batching it will be more reliable but implemented it can also be even before

[zubairov]

So, it should support both