Create a SaveNexus for storing workspace data

[Ronald Fowler]

Allow saving of workspace data in Nexus file format.

One way might be to allow writing (and reading) of the Nexus "Processed" NXentry which assumes that the data has been reduced to a standard for such as S(Q) and no longer requires the instrument definition.

[Ronald Fowler]

(In [1349]) Changed LoadNexus to offer file browser option as in LoadRaw (not yet tested) Changed SaveNexus to add simple test of writing 2D workspace arrays. Re #215

[Ronald Fowler]

(In [1350]) Fix to Linux warning on build of NexusUtils.cpp and to delete output file from SaveNeXusTest.h. Re #215

[Ronald Fowler]

(In [1445]) Added basic SaveNexusProcessed method, still needs some work to write all data. Also added some unit tests. Existing SaveNexus method not yet replaced. Re #215

[Ronald Fowler]

(In [1446]) Missed an include file from last check in Re #215

[Ronald Fowler]

(In [1447]) For linux correct case of include file name Re #215

[Ronald Fowler]

(In [1543]) SaveNexusProcessed updated. Now writes most required data, but lacking detector spectra map and time series properties. Re #215

[Ronald Fowler]

(In [1641]) Added LoadNexusProcessed algorithm to get back a workspace from Nexus file written by SaveNexusProcessed. LoadNexusProcessedRaw.h tests the cycle of load from raw, save to Nexus, load from Nexus, check data. Needs additions for instrument reading and spectra maps. Re #215

[Ronald Fowler]

(In [1643]) Fix for Linux error and a few warnings Re #215

[Ronald Fowler]

(In [1651]) Added loading of instrument data from normal XML file. Uses XML name if recorded in Nexus save of workspace data. Checks for loading of HET instrument data. Removed entryName parameter as not used for saving.

Re #215

[Ronald Fowler]

(In [1652]) Minor change to try and avoid null pointer check on Linux, need to find out why pointer is null. Re #215

[Ronald Fowler]

(In [1661]) Added writing SpectraDetector map data to Nexus. Still need to add reader for same. Re #215

[Ronald Fowler]

(In [1663]) Added reading SpectraDetector map data to LoadNexusProcessed. Re #215

[Ronald Fowler]

(In [1737]) Minor tidy up of Nexus and remove vcproj reference to non-existent file. re #215

[Ronald Fowler]

(In [1745]) Added read/write of the "Y-Axis" unit into save/load Nexus processed. Added unit test. re #215

[Ronald Fowler]

Saving and loading of Nexus files working. Further enhancements under separate tickets.

[Stuart Campbell]

This ticket has been transferred to github issue ​1063