Incorporated ASCII cross sections, need final step

ASCII cross sections have been incorporated in Array 41**, the last step
needs to be performed where the FIDO array gets recast into the internal
array.
Finalized processing of FIDO XS to internal

Figured out the array math necessary to disperse the 1-D FIDO array of
cross-section data to the internal 4-D array.  See Test Case 2.