Adding option to group STL files by Phase by encoding the Phase index into the file name and the header of the STL file. This required updating the Quick Surface Mesh filter to add an option to transfer the phase information from the voxel volume data container onto the triangle face as Face Arrays. This is now an option that the user can select on the Quick Surface Mesh filter. The option is also available for the STL output files. The phase id is listed first if the user has selected this option otherwise the phase information is left off the filename. Updates #133