New Rule: Binary

[CSenshi]

Rule Name: Binary

Rule Description: {A clear and concise description of new rule}

Rule Usage Example:

reqs = {"data" : "010101010010"}
rule = {"data" : "binary"}
validate(reqs, rule) # True

reqs = {"data" : "0b010101010010"}
rule = {"data" : "binary"}
validate(reqs, rule) # True

reqs = {"data" : "1231231"}
rule = {"data" : "binay"}
validate(reqs, rule) # False, It fails because only 0 and 1 occures in binary

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Before contributing please review RULES.md (check for duplication), also check CONTRIBUTING.md for more details :100: