Add support for Chad TIN

[unho]

• Seems to be called Numéro d’Identité fiscal (NIF)
• Seems to be called Numéro d’Identification Fiscal Unique (NIFU) according to https://finances.gouv.td/index.php/le-ministere/le-ministre/item/304-un-numero-d-identification-fiscal-unique-nifu-pour-maitriser-les-recettes-fiscales
  • Also according to https://observatoire.td/viewer.php?id=111
• Seems to be called NIF according to https://sigi.finances.gouv.td/create-account.zul;JSESSIONID=0af9a186-d139-4c9b-8fca-68460004b7f7
• Seems to be called Numéro d'Identification Fiscale (NIF) according to https://www.finances.gouv.td/index.php/publications/lois-des-finances?view=download&id=190
  • Also http://www.finances.gouv.td/index.php/le-ministere/le-ministre/item/download/353_268a0d5bc48bd0f19a445881e082047b
• numéro d'identifiant fiscal according to https://dgi.td/organigramme.html
• https://sigi.finances.gouv.td/

Examples:

• 600010602 from https://particuliers.societegenerale.td/fr/mentions-legales/
• Probably it has some arabic name, because I am unable to find more examples