Improve project saving/loading to the .mantid file - Fitting

[NickDraper]

This issue was originally TRAC 2536

This ticket is blocked by :

• TRAC9970

Save should store the structure and values of the fit function toolbar.

Load should restore them.

[NickDraper]

@NickDraper (2011-04-27T07:35:47):
Bulk move of tickets at the end of iteration 28

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@NickDraper (2011-06-27T08:23:26):
Accepted and assigned tickets moved at iteration 29 code freeze

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@NickDraper (2011-09-19T09:30:25):
Bulk move of tickets to iteration 31 at the iteration 30 code freeze

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@NickDraper (2012-01-09T09:42:39):
Moved to iteration 33 at iteration 32 code freeze

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@NickDraper (2012-04-30T14:11:25):
Moved at end of release 2.1

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@NickDraper (2012-08-10T12:43:18):
Moved at the end of release 2.2

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@NickDraper (2012-10-28T11:38:31):
Moved to milestone 2.4

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@NickDraper (2013-01-28T09:22:49):
Moved at the code freeze for release 2.4

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@NickDraper (2013-04-29T09:49:31):
Moved to r2.6 at the end of r2.5

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@NickDraper (2013-07-26T13:54:57):
Moved to backlog at the code freeze for R2.6

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@NickDraper (2014-02-14T11:04:55):
Bulk move to assigned at the introduction of the triage step

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@eXeC64 (2014-12-04T11:45:49):
This could be quite involved, as I'm unfamiliar with the fit function toolbar and it seems to contain a lot of state and settings. Pushing to v3.4

[samueljackson92]

I think this is a duplicate of #17445. We'll use the other issue and close this one.