Refs #9378.  Changed input properties.

1. Added input properties to support inelastic TOF correction;
2. Added contents in wiki for new feature;
3. Modified unit test because of change in properties.
Refs #9378.  Modified event time correction for splitting.

The correction formula for splitting is generalized to
T_pulse + toffactor * TOF + tofshift

The printdetail option is removed because the code is well tested.
Added event time correction for inelastic instrument. Refs #9378.
Made error message more detailed. Refs #9378.
Added 2 unit tests to EventListTest for new methods. Refs #9378.
Added more unit tests. Refs #9378.
Refs #9378.  Added property to output splitted workspace names.

And make unit tests to use this to clean all the output workspaces.
Resolved conflicts. Refs #9378.