Add default error handler for Interactors

import io.reactivex.disposables.Disposable

import io.reactivex.rxkotlin.plusAssign

import io.reactivex.schedulers.Schedulers

import timber.log.Timber

abstract class Interactor<in Params> : Disposable {

                .subscribeOn(Schedulers.io())

                .observeOn(AndroidSchedulers.mainThread())

                .doOnComplete(onComplete)

                .subscribe()

                .subscribe({}, Timber::w)

    }

    override fun dispose() {