Convert run numbers into filenames

[Steve Williams]

Write a class that will give an instrument name, the number of digits for run numbers and default path information will return a filename. I don't know how complex this is going to get, maybe around 10 hours.

[Steve Williams]

This will use a ComoBox with instrument name roots and a FileProperty behind a LineEdit. The FileProperty will take a list of extensions to be searched, in order, and will deal with lists of paths. Not including creating a Qt custom widget this will hours.

[Steve Williams]

(In [3797]) Created a new widget MWRunFile that can be placed on an interface where user selection of run (raw or .nxs) is required. MWRunFile widgets have been placed on the Excitations Group conversion interface along with more saved settings refs #835 closes #1049

[Martyn Gigg]

(In [3799]) Fix for MantidQt build. Re #835

[Steve Williams]

(In [3819]) Placed MWRunFile widgets on the Excitations Group conversion interface and debugged refs #835

[Steve Williams]

Was tested with #1071 as it can only be used when it is incorporated into the interface. More work is required on file validation including executing the validation as a separate thread.

[Stuart Campbell]

This ticket has been transferred to github issue ​1683