scrub_keds: Remove well-known noise from KEDS event data file
Description
Removes well-known noise from KEDS output files
Details
This function applies the regular expression based
cleaning routine from the KEDS website. This is a direct
translation from the original PERL which replaces capital
'O's and small 'l's with 0 and 1 respectively and removes
the event code '---]', on the assumption that these are
all output noise.