Fix OData URL Substitution

[commonsensesoftware]

Fixes the parsing and substitution of route prefixes for the OData API Explorer. Also enables the optional inclusion of API version parameters for version-neutral actions (normally excluded).

Fixes #365

[LuukN2]

This should fix self-references.

However I got an algorithm working that works for both self-referencing types and back-references.
The downside however is that when there is a self-reference or back-reference present you cannot know if the referenced type matches the clrtype yet. This means these types will always be dynamically generated.

It keeps track of the types that couldn't be finished because of properties that still have types being built for them and adds them to a list of properties that have dependencies on those types.

When a type is being built it checks this list for properties that reference it. It adds a property on that type that references the TypeBuilder. If this depletes the list of dependencies for that type the type can be built and is added to the generated types.

I have commited very rough changes on my branch if you want to check them out, I'll rewrite it based on these changes, polish it and open a new pull request later.

I have a lot of time available next week and there's a few more possible edge cases that I'll make repros/pull requests for next week.

[commonsensesoftware]

Sounds good. I appreciate the help. :)