add support of orient param in get data v3
- Add support of 'orient' parameter for JSON format in get bulk data (V3)
- orient = 'split' by default for all APIs (was 'columns' for read data bulk V3, 'split' for all others)
- As agreed, remove support orient 'index' and 'records', remains 2 choices 'split' and 'columns'
Edited by Yannick