Add authorisation api endpoint

/authorisation endpoint in POST with
email, password, and file or regexp to file authorized to modified

authorisation will check data in the csv file
trefle/config/authorisations.csv (with 3 columns: email, password, file)

if the authorisations.csf does not exists it will be created empty
waiting to be populated otherwise no authorisations to modify files will
be available
1 job for authorisation in 1 minute and 16 seconds (queued for 3 seconds)
Status Job ID Name Coverage
passed #4819