MUON: Change results tab so that you can see all workspaces with fitted parameters.

[Robert Whitley]

The scientists want all fitted workspaces to appear so that they can do other fits to other data without having to start a new project in Mantid.

Currently the error message appears when you click on the tab and will only populate the table with the first workspace with fitted parameters and the others that share these parameters.

They want it so that all workspaces with fitted parameters are shown but the table can only be created if the ones selected share the same parameters. To help with this color could be added to show which ones have the same parameters.

[Robert Whitley]

Refs #4691. Have the result tab populate with all fitted workspaces.

Include color for better indication of which ones share parameters.

Changeset: 8f0616b229d2abaa438944438377d711f772a256

[Robert Whitley]

Refs #4691. Fix warning.

Changeset: 0e2188213ac4649f5069d9f814d2a5b6642d44e0

[Robert Whitley]

There is a limit of 6 different colors before it starts using the default black color.

This should be enough because the scientists don't plan on using different parameters that often.

[Stuart Campbell]

This ticket has been transferred to github issue ​5538