add integer to roman function (#4050)

* add integer to roman function

simply added fastest method i found.

* Rename roman_to_integer.py to roman_numerals.py

* Update roman_numerals.py

* Update roman_numerals.py

Co-authored-by: Christian Clauss <cclauss@me.com>

Kavindu Santhusa committed 5y ago

03889613bc68e1c1bdd101f1070e303aab00a7c7

Parent: 00f22a9

Committed by GitHub <noreply@github.com> on 12/21/2020, 9:55:59 PM