Switching createGraphQLEnumTypes and createGraphQLDirectiveTypes to allow EnumTypes directive arguments

[mskacelik]

/cc @jmartisk
fixes: #1978

Possible two edge case problems:

• if the EnumType has another directive whose arguments have a different EnumType that has yet to be added to the enumMap.
• Circular dependency: for example, EnumType has a directive whose argument is the same EnumType

For the second case, I think it's not doable even using the raw java-graphql API since the GraphQLEnumType would need a reference to itself in its definition.

[jmartisk]

Nice!