Added new interface and skeleton code for Transmission tab.

Refs #4889
Linked interface with algorithm

Refs #4889
Merge remote-tracking branch 'origin/master' into feature/4889_indirect_transmission_tab

Conflicts:
	Code/Mantid/Framework/PythonAPI/PythonAlgorithms/WorkflowAlgorithms/IDAtransmission.py

Refs #4889
Output now includes run number in name.

Refs #4889
Fixed options in new python API.

Also added better error checking.

Refs #4889
Adding more verbose python output

Refs #4889
Moved options to bottom of tab.

Also changed index of tab to be before S of Q

Refs #4889
Removed IDAtransmission algorithm from application.

Refs #4889
Modifying python code to directly use function

Refs #4889
Minor cosmetic change to interface re Spencer.

Refs #4889
Merge remote-tracking branch 'origin/feature/4889_indirect_transmission_tab'