A local authority name to code mapper

[Sparrow0hawk]

It looks like we may have to routinely map local authority names to the 3 letter codes used within active travel England. It would be very nice to develop a simple tool that does this mapping simply and robustly.

I envisage it taking at least two arguments: a version and an input string. The version would map to a file (internal to package) that contains local authority name-code mappings where each time it has changed we increment a new version number (would recommend using CalVer). The input string would be for a local authority name on which we either exact (or fuzzy match) to a code. Values that don't match would return NA or None.