Feedback needed: People are omitting ITypeProvider registration

[petrsvihlik]

Motivation

We receive a lot of various error reports (on StackOverflow, GitHub, support chat on intercom) that all have one common denominator: they are caused by a missing registration of the ITypeProvider implementation.

There are more ways to register the implementation and they are described here: https://github.com/Kentico/kontent-delivery-sdk-net/wiki/Working-with-strongly-typed-models#adding-support-for-runtime-type-resolution

For simplicity (and historical reasons), the registration is not included in the README (so probably a lot of people miss it at that point).
The fact is that the ITypeProvider is not required for the simplest scenarios such as retrieving a 1st level model without complex types. However, for anything more complex (linked items, rich text, etc.) it absolutely necessary to have it registered.

Proposed solution

We have a few options:

1. link the wiki page from the readme
2. make the readme a bit longer and add the registration there + link the wiki page
3. move all best practices to README
4. implement automatic lookup of ITypeProvider (in calling assemblies) and allow developers to override it
5. make the registration of ITypeProvider mandatory and throw an exception if omitted
6. something else???

Your opinion

Let us know what would be an appropriate solution for you (if you were a new user of the SDK).

[petrsvihlik]

e.g. #271