We want to hide Q*ItemModel behind native looking structures for QtBridges.

We already have QAbstractItemModel exposed to Rust, so hopefully we can built on top of that.

One simple idea is to provide generic containers that are copies of the native conatainer  (e.g. Vec<T>) but implement a QAbstractItem Model in the background.

This should be relatively straight-forward for simple types T. Ideally, we can also treat special types T, such as QObjects, tuples and maps in a particular way, mapping roles to properties, entries or keys.