refs #6856 Copied ConvertToDiffractionMDWorkspace.cpp

into MD algorithms
refs #6856 Cloned initial algorithm into version 2

and verified that everything (unit tests) works fine, so we have two identical versions of the same algorithm with only the version number different
refs #6856 Compiles but does not work
refs #6856 All works except single event per bin
refs #6856 Disable missing properties on interface and some comments
refs #6856 merge conflicts with the develop

Merge branch 'feature/6856_ConvertToDiffractionMDWS_v2' into develop

Conflicts:
	Code/Mantid/Framework/MDAlgorithms/src/ConvertToMD.cpp