v0.4.0

Major Changes

• Added the function load_hst_file to read .hst files as Polars DataFrames (PRs #55 & #57)

Minor Changes

• Fix typos in documentation (PR #56)
• Fix the algorithm to detect and remove restarts in .track.dat files (PR #57)
• Added more documentation on how to use Polars (PR #58)
• collate_tracks_from_ascii and collate_tracks_from_binary will now create destination directories if they don't already exist (PR #60)
• Expand on the contributing guide to give more detail on how to add new things (PR #61)
• Remove the incorrect spectra averaging until #34 is fixed (PR #62)