* Fully qualified the package directory structures as com.newmotion...
* Merged PR #66 with Scala 3 compatibility changes
* Cleaned up many warning messages that were found with IntelliJ 2021.2
* Updated the Prop constructors
* Updated deprecated setTimer() calls to startSingleTimer() in ConnectionActor.scala

* Upgraded to Scala 2.13.6
* Upgraded to SBT 1.5.5 and cleaned deprecated issues
* Updated to latest dependencies:
    ** ampq-client: 5.9.0 -> 5.13.1
    ** com.typesafe .config: 1.4.0 -> 1.4.1
    ** org.specs2.specs2-mock: 4.10.3 -> 4.13.0

Co-authored-by: PJ Fanning <pjfanning@users.noreply.github.com>