Scott: SmartEnum Implicit Value Conversion

[sdepouw]

Allows converting from SmartEnum<TEnum, TValue> to TValue. Useful for situations that crop up when using C# enum where you need the integer value.

private void SomeMethod(int enumValue) { }

// Elsewhere in code
SomeMethod(TestEnum.One); // Now you don't have to write TestEnum.One.Value

This is particularly useful when adapting legacy code, transforming enums into SmartEnums.

Also in this PR:

• Root namespace of SmartEnum updated to match AssemblyName and namespace use in code.
• using removal/sorting
• whitespace fix