Load and save diffraction calibration file

[peterfpeterson]

This should allow for loading and saving calibration data for the new AlignDetectors.

This is documented in the release notes here.

[peterfpeterson]

The latest windoze build is not finding H5Cpp.h which is in a subdirectory of 3rdpartyincludes. I think it is an issue in either hdf5-targets-windows.cmake or hdf5-config.cmake or CommonSetup.cmake. Of these, I think targets-windows.cmake is the most likely.

[wdzhou]

The new algorithms can save and load offset, mask and group workspaces as designed. The only issue found is that the instrument of the original mask workspace and the one of saved-loaded mask workspace are not same. I point it out though I think it is another issue to mask workspace. Issue is thus closed.