Log Message:
py-stdnum: updated to 1.18

changes from 1.17 to 1.18
-------------------------

* Add modules for the following number formats:

  - NN, NISS (Belgian national number) (thanks Cédric Krier)
  - CFI (ISO 10962 Classification of Financial Instruments)
  - Czech bank account number (thanks Petr Přikryl)
  - NIF, sometimes N.I.F. (Numéro d'Identification Fiscale, Algeria tax number)
    (thanks Leandro Regueiro)
  - V-number (Vinnutal, Faroe Islands tax number) (thanks Leandro Regueiro)
  - TIN (Taxpayer Identification Number, Ghana tax number) (thanks Leandro Regueiro)
  - PIN (Personal Identification Number, Kenya tax number) (thanks Leandro Regueiro)
  - ICE (Identifiant Commun de l’Entreprise, التعريف الموحد \ 
للمقاولة, Morocco tax number)
    (thanks Leandro Regueiro)
  - PIB (Poreski Identifikacioni Broj, Montenegro tax number) (thanks Leandro \ 
Regueiro)
  - ЕДБ (Едниствен Даночен Број, North Macedonia tax \ 
number) (thanks Leandro Regueiro)
  - CNIC number (Pakistani Computerised National Identity Card number)
    (thanks Syed Haseeb Shah)
  - Enotna matična številka občana (Unique Master Citizen Number)
    (thanks Blaž Bregar)
  - MF (Matricule Fiscal, Tunisia tax number) (thanks Leandro Regueiro)

* Fix disabling check digit validation of Mexican CURP (thanks guyskk)
* Support special validation of La Post SIRET (thanks BIGBen99 and Cédric Krier)
* Fix support for "I" and "O" in CUSIP number (thanks Thomas \ 
Kavanagh)
* Calculate ISO 7064 Mod 97, 10 check digits in the range 02-98 for IBAN
  (thanks David Svenson)
* Fix German OffeneRegister lookups (change of URL and of data structure)
* Add extra court alias for Berlin in German Handelsregisternummer (thanks Romuald R)
* Ensure certificate for the Belarus VAT number check_nalog() lookup is included
* Support parsing incomplete dates in GS1-128 (thanks Alexis de Lattre)
* Improve validation of CAS Registry Number
* Typo fixes (thanks Vladimir and Dimitri Papadopoulos)
* Add a check_uid() function to the stdnum.ch.uid module
* All validation exceptions should now inherit from ValueError
* Switch from nose to pytest as test runner