* Implemented lazy stream opening for mplex connections
* Properly fix newStream usage
* Make lazy channel open optional
* Add Lazy channel test
* Cleanup mplex test
* Move lazyness properly into LPChannel
* Connection writeLp back to proc
* fix: don't allow replacing pubkey
* fix: several small improvements
* removing pubkey setter
* improove error handling
* remove the use of Option[T] if not needed
* don't use optional
* fix-ci: temporarily pin p2pd to a working tag
* fix example to comply with latest changes
* bumping p2pd again to a higher version