feat/dart-rid-api: rid object combining Rid API and config

[thlorenz]

Adding to the Rid object introduced with the last change, to expose the following:

• rid.debugReply controls how/if replies to requests are logged (was RID_DEBUG_REPLY), has
  a default
• rid.debugLock controls how/if locking the store on access is logged (was RID_DEBUG_LOCK)
  has a default
• rid.replyTimeoutconfigures the Duration after which a missing reply for a request mesage
  sent via the rid.replyChannel results in an error (was RID_REPLY_TIMEOUT), has a default
• rid.replyChannel provides access the channel over which replies to requests are sent,
  namely the Stream<TReply>rid.replyChannel.stream which can be used to subscribe to those
  replies (was replyChannel)
• rid.messageChannel provides access to messages sent to Dart from Rust, i.e. via
  rid::log_debug! or rid::error! macros, namely the Stream<RidMessage> rid.messageChannel.stream which can be used to subscribe to those messages, by default those
  messages aren't handled

Tests and examples here were updated to this API update and I will provide a related PR in
order to adapt them as well.