Improvements to Save button

[Dan Nixon]

Stewart has suggested a couple of changes to the Save button that will allow it to select a specific save algorithm.

Essentially it should be modified to:

• When multiple or no workspaces are selected behave as it does now
• When a single workspace is selected present a list of save algorithms that can be used with that workspace, at a bare minimum this should include SaveAscii v1, SaveAscii v2 and SaveNexus

[Dan Nixon]

Added majority of new save button functionality

Refs #10672

Changeset: 914e33a59b548d34b134110df91fd03b335aa0d7

[Dan Nixon]

Ability to set version when also setting props

Refs #10672

Changeset: 8a98cc6dd0f5eeadb383f4567ae6625ee73d26a8

[Dan Nixon]

Provide a simple way to add more save algos

Refs #10672

Changeset: 87d4e788cbd0ecdcd542737392a085f3f5dec951

[Dan Nixon]

I've just added some generic save algorithms, and the specific one (SaveAscii v1) requested by Stewart, it is trivial to add additional algorithms to the menu dependent on both the workspace type and name so it has good scope for being expanded later with more workspace/data/technique specific workspaces and algorithms.

To test:

• Open a few workspaces
• With none selected the Save button will be disabled, clicking on it should do nothing
• With many selected the same functionality as before should be observed, it should request a save folder and save each file in that folder using SaveNexus
• With one selected it will provide a drop down menu with some save formats, try each of them ensuring that it loads the correct algorithm and correct version.

[Dan Nixon]

Correct cppcheck warnings

Refs #10672

Changeset: 11d434743a304ea82ce0a5efa098681ea81d4842

[Raquel Alvarez Banos]

Merge remote-tracking branch 'origin/feature/10672_save_button_updates'

Full changeset: ​0ea806c060156f632981deae232873fdf44b530c

[Stuart Campbell]

This ticket has been transferred to github issue ​11514