Create mantid dataset for published data

[mantid-builder]

Original Reporter: Jay Rainey

Currently, when ''publishing'' a datafile to the archives it is stored in the [https://github.com/mantidproject/mantid/blob/master/Code/Mantid/Framework/ICat/src/ICat4/ICat4Catalog.cpp#L887 Default (first)] dataset alongside the raw experiment data. Instead, analyzed data published from Mantid should be stored in a separate dataset (named mantid).

To achieve this, I need to:

1. Loop over the datasets for the specific investigation.
2. Set the [https://github.com/mantidproject/mantid/blob/master/Code/Mantid/Framework/ICat/src/ICat4/ICat4Catalog.cpp#L862 datasetID] to the dataset ID of the mantid dataset if it exists.
3. When the loop is complete, check if datasetID is still it's default value. If it is, then no mantid dataset was found. As no dataset was found, we need to create one via createMantidDataset'''*'''.

'''*'''
This method will create a dataset named mantid for a given investigationID. I will need to call isAccessAllowed prior to create to verify if I can create the dataset. If I cannot then I should return -1 and output a notice().

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Keywords: ICAT

[mantid-builder]

This issue was originally trac ticket 9376