Remove lemi_metadata module. Up-to-date modules handling LEMI metadata will be pushed in next branch.

Update methods in Run, Electric and Magnetic dataclasses to cross-validate user provided serial numbers and dipole lengths against information in INF files

Add/Update "utils" functions to better handle notion of run and to cross-validate serial numbers against information in INF files,

Clarify that if statement on time_stamp variable is to check that the time stamp and by extension the input file are properly formatted