v1.5.1

This release adds to autoplot_tally_results() a new type of plot to be generated for [T-Yield] tally results when axis is set to chart or dchain in the PHITS tally input, displaying nuclide yields in a "table of isotopes" style format, a much more useful display method. The documentation for autoplot_tally_results() has been updated to reflect this as well as to link to some example plots generated by the function.