Rx with diffing components

rxwithdiff.swift

import RxSwift
import ViewComponents

extension ObservableType where E: ComponentConvertible {
    public func diff() -> Observable<Component<E.ComponentViewType>> {
        return map({ $0.toComponent })
            .scan((Component(), Component()), accumulator: { ($0.1, $1) })
            .map({ $0.0.diffChanges(from: $0.1) })
    }
}