Merge pull request #4 from opotowsky/cep18

initial PHYSOR input files
made the initial condition for enrichment facilities more intuitive
added my changes
2 sources now runs... got a weird decay error, though
updated enrichment input
change the time to 1 for when the recipes change
as of this commit, 2_Sources_3_Reactors works as intended
as of this commit, 2_Sources_3_Reactors and 1_Enrichment_2_Reactors work as intended. time to document and declare victory
updated batch reactor to behave as expected for inpro and added a test file to confirm it works over two cycles
updated begin_time name to more accurately reflect its role
added more documentation to the batch reactor
fixed bugs in the inpro files
added decommissioning behavior, where reactors will dump their cores if its the end of their lifetime
added documentation
updated the batch reactor to handle decommissioning relatively well and fixed some tests. @rwcarlsen, this is my leading theory as to why our numbers are off... let me know how close we get if you have the time. thanks
added an updated reactor identical to the previous inpro implementation with cep18 additions
move batch reactor full sim testing to the batch reactor dir
reverted inpro inputs to use inpro reactor
removed capacities from inpro files
added single reactor input files