Generate a kpoint path for band structure plots. Usage: bandstructKpoints <inFile> <dk> <outfilePrefix> <inFile> should contain a list of kpoints in the JDFTx syntax, except with the weight replaced by a label eg. Gamma, X, L etc. <dk> is the typical dimensionless separation (BZ~1) between k-points. The script will generate <outfilePrefix>.kpoints containing a list of kpoints in JDFTx input format and a gnuplot script <outfilePrefix>.plot to plot the resulting bandstructure. Note that the plot script assumes that the JDFTx run will produce <outfilePrefix>.eigenvals, so you may need to set the dump-name in the JDFTx run, move the file or edit the plot script.