Adds some tweaks for MIRI LRS support
* Wavelength calibration for MIRI LRS
* Fixes a bug in bad pixel identification (before `tshirt` compared a background-subtracted reference with the non-background-subtracted reference, ie apples and oranges and generated spurious bad pixels for replacement)
* Negative dispersion flips the pixel starts and ends when generating wavelength pixel tables
* Save the `tshirt` version number in the spectroscopic extracted data file
* Fix an issue with LombScargle import in newer astropy