TIP, TCR, FAC transaction modes are not explained anywhere

[dpriskorn]

See https://github.com/Dolibarr/dolibarr/blob/develop/htdocs/install/mysql/data/llx_c_paiement.sql and https://wiki.dolibarr.org/index.php/Transaction_type

[dpriskorn]

still not documented to my knowledge

[github-actions[bot]]

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