Add additional Roman numeral checks
Add additional Roman numeral checks

BhaveshSGupta/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,raisedadead/FreeCodeCamp,otavioarc/freeCodeCamp,pahosler/freecodecamp,FreeCodeCamp/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,otavioarc/freeCodeCamp,HKuz/FreeCodeCamp,FreeCodeCamp/FreeCodeCamp,HKuz/FreeCodeCamp,pahosler/freecodecamp,jonathanihm/freeCodeCamp,jonathanihm/freeCodeCamp,raisedadead/FreeCodeCamp