Add Queries to ModuleDSL

[johanhaleby]

val myRepository = ...
val myModule = module {
	...

	queries {
                query("stuff") {
                          myRepository.findStuff()
                 }
		domainEventQuery("AllStartedGames") { domainEventQueries ->
			domainEventQueries.queryForSequence<GameStarted>()
		}
	}

}

then use it in e.g. rest API:

val allStartedGames = myModule.query("AllStartedGames")

We could also create queries with types:

val myModule = module {
	...

	queries {
		domainEventQuery<AllStartedGames> { domainEventQueries ->
			domainEventQueries.queryForSequence<GameStarted>()
		}
	}

}

and then:

val allStartedGames = myModule.query<AllStartedGames>

Maybe the interface (AllStartedGames) could somehow define the return type of the Query? If so we probably need to introduce a Query interface such as Query<T> where T is the return type.