Change the way MinDigits variable is used in NumericLiterals.

The offense is added now when the size of the numeric is gt MinDigits.
It is not added when the size of the numeric is equal to MinDigits.

If I understand it correctly this should be a desired behavior. That is when I set the MinDigits to `3` then the integer `401` should not be reported as an offense. Not until it has 4 digits like for example `4010`.