Change parameter positions for add / remove listener

[vanniktech]

Description

-fun addListener(listener: Query.Listener, queryKeys: Array<String>)
+fun addListener(queryKeys: Array<String>, listener: Query.Listener)
-fun removeListener(listener: Query.Listener, queryKeys: Array<String>)
+fun removeListener(queryKeys: Array<String>, listener: Query.Listener)

That way one could make use of the fun interface:

  fun interface Listener {
    /**
     * Called whenever the query this listener was attached to is dirtied.
     *
     * Calls are made synchronously on the thread where the updated occurred, after the update applied successfully.
     */
    fun queryResultsChanged()
  }

since the lambda function would be last.

[hfhbd]

I would also change queryKeys: Array<String> to vararg queryKeys: String.