Add support for Niger TIN

[unho]

• Seems to be called Numéro d’Identification Fiscale (NIF) according to https://www.doingbusiness.org/content/dam/doingBusiness/country/n/niger/NER.pdf
  • Also https://www.marchespublics.ne/compte
• Sometimes called N.I.F.
• https://www.deel.com/blog/register-a-sole-proprietorship-in-niger

  Every business in Niger must have its own Tax Identification Number (TIN), locally called Numéro d'Identification Fiscale - NIF. The process of obtaining a TIN with all the necessary forms can be found on the official website.

Examples:

• 4419 from https://www.seen-niger.com/fr/mentions-legales
• 79455/P from https://kasuwaniger.com/products/section/12/knorr-chiken
• 22093 from https://niger.iom.int/contact-us
• 4141 R from https://www.volza.com/company-profile/cgcint-bp-10884-niamey-niger-nif-4141-r-tel-22-791-245-537-n-dr-21303557-43888652/
• 33373 S from https://www.volza.com/company-profile/ardaly-son-niamey-nordire-cun-5-niger-nif-33373-s-44039923/
• 55189/p from https://fr.importgenius.com/ukraine/buyers/la-vita-sarl-nif-55189-p-quartier-koubia-naimey-niger
• 27818 from https://www.nbd.ltd/trader/info/NBDDIY355777434
• 27818 from https://panjiva.com/Kadiibro/87048139
• 1205 from https://www.mde.ne/uploads/businessDocuments/Notedeservice061DG2017NIGELEC.pdf
• 21 742/S from https://www.presidence.ne/conseils-des-ministres/2022/4/7/communique-du-conseil-des-ministres-du-jeudi-07-avril-2022
• 1218 from https://www.arcep.ne/uploads/documents/numeros_sonibank.pdf
• 1300 from https://www.cnut.ne/images/Telechargement/ARRETE_INTERMINISTERIEL_N0129_MT_ME_DU_14_DECEMBRE_2015.pdf
• 1201 from https://lonani.ne/wp-content/uploads/2018/09/Scan_Doc0014.pdf
• 1209/R from https://www.kaomini.ne/uploads/contrat.pdf
• 4752 from http://www.spen.ne/images/AppelsOffre/N003DPI2018.PDF