Update README
Added flux to bare.mcnp

Added flux tallies to bare.mcnp.  The goemetry was generated by
MCNPXModel with a 20 length bit string of all zeros.
Merged the RPMModel

Merged the RPMModel back to the master to start working on a real XSDRN
calculation of the activity / interaction rate.
Initial commit
Working on compositions

The composition is simplfied into two materials, HDPE and a PEN and LiF
compositions
Compositon in wt fraction

Added the composition to be a weight fraction.
NITWAL block completed

The NITWAL block is completed, but it is not checked.
XSDRN Data Block 1 Complete

Completed the first data block of XSDRN (expect for the MS) card, which
I don't know what it does.  I am currently not using flux collaposing.
XSDRN Data block 2 completed

Completed writing the second data block for the XSDRN input deck.  The
material composition is a bit fuzy, but I think I worked it out.
Completed XSDRN Input (NOT DEBUGGED)

Completed the XSDRN input deck, working on debugging it / ensuring it is
corrected.
Comented out NITWAl

Commented out the NITWAL block, do I need it?
Initial Commit

Breaking up the calculation into its subsquenet parts.
Removed NITWAL Module

Removed the NITWAL module, and now using the CENTRIM / worker modules of
scale.
Added Pb, Air to materials

Andded Pb and Air to the materials
Added Source Tallies

Added tallies to try and compute the source terms for the XSDRN
calculations.
Cannot find Argon 40 XS

Cannot find the argon 40 cross section, but I want to go back to trying
a surface surfce in which air won't be needed.
Removed air and pb

Removed the air and pb isotopes from the input deck, as they will not
be needed in a surface source represetnation.
Added a name after =xsdrn

Added a problem name after =xsdrn.  Now I am running into a cross
section issue, probably going back to NITWAL.
Added source overview
Working NITWAL Module

A working NITWAL module (but I don't know about all of the cross
sections are loaded / if the correct resonance is used).