Add support for Mauritania TIN

[unho]

Sometimes called "Numéro d'Identification Fiscale" (short form NIF) ("رقم التعريف الضريبي" in Arabic), and other times "Matricule fiscale".

I could not find any source about the structure or length. According to what I tested in the online search below, the length seems to be 8 digits, and if it is shorter you should prepend enough zeroes to get to 8 digits.

• Verify NIF online: https://impots.gov.mr:8080/DGI/ (found through https://finances.gov.mr/fr/node/22)

Examples:

• https://www.petrole.gov.mr/IMG/pdf/tableau_registre_petrolier_itie_2017.pdf

  20300059 00409136 90300075 00455386 00510669 00510651 00510677

• https://www.petrole.gov.mr/IMG/pdf/tableau_registre_petrolier_itie_2018.pdf

  20300059 619429 (works if you prepend two zeroes) 619437 (works if you prepend two zeroes) 00409136 90300075 00455386 00510669 00510651 00510677

• 20700455 from https://irshad.mr/avis-dattribution-provisoire-de-marche-pour-les-travaux-dinstallation-des-clotures-grillagees-de-100-hectares-des-aglc-dans-les-wilayas-de-lassaba-de-deux-hodhs-et-du-guidim-2/
• 00042218 from https://benteyba.mr/
• 11100448 from https://eps.mr/en/index.php?option=com_content&view=article&id=49&Itemid=54
• 00520510 from http://www.alem.mr/Contacts/
• 10600166 from https://www.agriculture.gov.mr/IMG/pdf/avis_d_attribution_definitive_-ma-2018.pdf
• 00066845 from https://beta.mr/docs/pdf/APM_HAPA.pdf
• 30500075 from https://somelec.mr/sites/default/files/Affichage%203414.pdf
• 00117549 from http://www.dtf.gov.mr/images/2019/CAMEC2019.pdf
• 70 401 906 from https://www.comavip.mr/quisommes.php
• http://www.cncmp.mr/IMG/docx/Publication_avis_attributions_definitives__ProLPRAF_MA_PND_MEDD_2015.docx

  30600091 11100778 10701982 20400034

• https://www.bcm.mr/liste-des-prestataires-de-transfert-de-fonds-domestique-autorises-en-mauritanie

  20705520 00554352 00550608

• 01196641 from https://conecty.mr/
• https://filefr.ami.mr/pdf/6441.pdf

  3060009 1110077

• 00060707 from http://www.afsa.mr/Manuel.pdf
• 00127456 from https://bca.mr/contact/
• 00407239 from http://www.transite.mr/
• https://www.fonctionpublique.gov.mr/IMG/pdf/pv06_2018.pdf

  00091769 00055152 10701354 10701339 10707336 10713326 10701495 00194480 00076299 00516534 10800042 10706114

• 00066845 from https://www.commerce.gov.mr/fr/?q=node/1290
• 10709316 from https://www.sante.gov.mr/?p=2194
• 30200208 from https://www.somascir.mr/
• 10709951 from http://praps.mr/sites/default/files/document/avis%20d%27attributions%20a%20publier%20sur%20site%20praps%2010.pdf
• 30200174 from https://www.arpeco.mr/
• https://filefr.ami.mr/pdf/6225.pdf

  30700067 30700113

• 20600117 from http://www.cncmp.mr/IMG/pdf/AVIS_ATTRIBUTION_DEFINITIFS_MAHADRAS_lot_2.pdf
• Several dozens at https://taazour.mr/fr/wp-content/uploads/2022/01/Repartition-constr-log.-soci.-DARI-1.pdf (attached here just in case)

  756924 793182 127258 664169 62869 367771 754028 71266 88021 10717012 560896 10707955 20705397 656215 286591 412445 10702865 392050 555649 214148 20602626 733899 767673 10703574 746909 280685 767889 652487 210518 10713896 352260 291799 291856 292300 292359 291831 346312 869883 865873 687541 10713201 435297 21103616 21100901 611145 139071 10600158 190405 752121 397422 800508 506717 831305 550582 39354 20901545 391276 202705 506915 143065 629642 745224 753673 509828 10708862 226316 520023 20703590 529529 540377 560938 264853 292391 11100075 233098 327379 60921 85084 619312 827071 498386 701342 10713102 10707476 733592 629006 20600125 20601099 751909 820852 10706544 10712070 346700 64287 621730 10600174 167866 65425 231720 20702154 355651 10718358 10715883 518092 10700513 10602709 20602808 10721188 10703103 20601206 501304 20600083 757815 625947 1060273 69237 39127 33787 661470 293902 801522 20600760 20704853 434282 726927 10708987 20701594 267914 188292 10603400 20704432 765271 74492 20302865 20600620 309104 10701776 591388 10704762 525154 421495 687541 662825 843896 793950 778027 10718820 85563 394932 864900 11101016 83352 20602782 11108235 30600323 319681 390286 406892 114157 41731 828608 10700885 837096 20705470 457085 248880 860072 503821 41100018 777755 856708 41673 10602410 366682 20602121 747287 714097 372367 11104234 10718655 735100 40700018 842815 10720354 791111 752402 21106429 665158 63040 637579 763326 10600042 20602477 71722 713537 10718200 11100935 222083 636670 21100760 58842 20703400 455113 123802 20704572 498329 10600620 10701479 748525 566273 248898 283440 856880 751503 20601081 10721147 837849 10700604 384685 10601305 135772 10600166 10723903 10601933 748970 408120 694018 11107690 251488 11100182 20602683 89086 20600141 10700893 746164 412593 380881 393678 10715974 644880 618702 614149 21101248 20705181 694018 719773 39354 513598 820613 10701065 854299 20704176 10600299 20701560 59493 836353 10715853 276725 118091 525311 11107518 10722269 756106 789958 10707708 748525 227900 10900828 139592 513572 10603079 79411 235796 73320 20704218