Bring pyChoper code written by Arianna and Jon into Mantid

[Alex Buts]

There is piece of code, written by visiting stuedent and our scientist and widely used on inelastic instruments, which calculates the chopper instrument resolution.

The code can benefit from improvements and merges but the first step would be to bring this code within Manitd.

[Alex Buts]

refs #7428 Added PyChop and LET chop code

Changeset: aff3c83009738484122f2eb044e5006b58b6b586

[Alex Buts]

refs #7428 Changes to make the code a bit more usable

but just a bit

Changeset: 5e5b685face6c283462dcddca4a16daa111500f3

[Alex Buts]

refs #7428 the head of all this.

Changeset: dc568c8878e6a5aaadf557f4996daefe76313a78

[Alex Buts]

I am almost sorry for taking this ticket as the code (especially pychop) needs a lot of improvements.

I tried to do what I can but it is the limit on what I can do in half a day.

To Tester. The purpose of the ticket is achieved. You should add PyChop to mantid.properties mantidqt.python_interfaces and check if it works (if everything has been added to Mantid)

If one has default instrument LET, the code behaves differently (and calls different GUI) then if the instrument is anything else.

The code itself needs substantial work and improvements + GUI has to be made one, but this can be achieved within another tickets.

[Nick Draper]

This is just adding some python scripts, they are not added to the interfaces by this commit.

Passed, but follow on tickets created:

• #6891 Merge functionality with 'Garrets scripts' & add as interface
• #7554 Improve code quality & write unit tests

[Nick Draper]

Merge remote-tracking branch 'origin/feature/7428_ChopInMantid'

[Stuart Campbell]

This ticket has been transferred to github issue ​8274