Display more useful values on CTDA\Type

[matortheeternal]

z-edit/zedit#46

[matortheeternal]

I have begun looking into and writing code for a way to solve this, but it has spiraled a bit out of control. The initial thought of "let's display more useful values" is not difficult to achieve. The challenge comes with "let's make editing this field easier". The CTDA\Type field is an enum-flags field. The lower 5 bits are flags, and the upper 3 bits are for an enum. This is a unique value type which does not currently have a corresponding Value Type returned from XEditLib's GetValueType function. For the purpose of being consistent across the XEditLib API, a new value type, vtEnumFlags will need to be added. The internal definitions will also need to be updated - we need to add TwbEnumFlags so we can determine when a field is an EnumFlags field, and within this new class we can embed both an enumDef and a flagsDef.

There are other potential approaches, but none of them are clean or create API consistency like this one does. The unfortunate result of this approach is it is a fair bit of work. Several hundred lines of code need to be updated/changed, and all definitions need to be evaluated for other EnumValue types. I'm going to put this on hold for a future release.