Refs #5300 Refactor and update moments algorithm.
Refs #5300 Update and refactor Moments algorithm.
Refs #5300 Create interface for new tab.
Refs #5300 Extend existing framework with new tab class.
Refs #5300 Add new tab to existing interface.
Refs #5300 Remove uneeded code.
Merge branch 'feature/5300_moments_sqw_tab' into develop

Refs #5300

Conflicts:
	Code/Mantid/MantidQt/CustomInterfaces/inc/MantidQtCustomInterfaces/ConvertToEnergy.ui
	Code/Mantid/MantidQt/CustomInterfaces/src/Indirect.cpp