* Use lowercase host in resource URI template derivation.
* Address feedback
* Add casing testing for non-templated resource lookups.
* Fix uri primitive lookup
* Use a hardcoded mcp hostname in derived resource template URIs and ensure built-in resources work with the VS Code client.
* Address feedback
* Fix equality comparison
* Use dedicated type for resource collections.
* Update content according to latest spec
* Add Title to a bunch of types
* Add _meta to lots of types
* Address feedback, more cleanup, fix NAOT test failure
* Make enums serialize as strings if using the reflection-based serializer.
* Remove unnecessary partial
* Use an explicit reflection-based converter for enums.
* Update comments
* Make the reflection-based enum converter public.
Right now by default, the client and server hardcode the initial spec version, and if there's a mismatch, the request fails.
With this change, by default both client and server are allowed to float to any supported version.
