feature--PDI--Improved_data_handling
Adding 3 functions for :
- copying data (having two similar PDI_datatype but whether or not the data is sparse)
- create dense type
- check if array is dense.
This is the internal modification suggested in #18 (closed) A soon as this is working and accepted I will add those features into the Utilities plug-in. Before that, please tell me if this is approximately what is expected. Any remark is appreciated :)