Remove all dependencies from main repo openwhisk for unit tests

[csantanapr]

No description provided.

[csantanapr]

This is going to take more work and discussion to do.

Some classes and functions are easy to duplicate.

The problems with https://github.com/apache/incubator-openwhisk/blob/master/tests/src/test/scala/actionContainers/ActionContainer.scala#L167

 private def syncPost(host: String, port: Int, endPoint: String, content: JsValue): (Int, Option[JsObject]) = {
    whisk.core.containerpool.docker.HttpUtils.post(host, port, endPoint, content)
  }

The whisk.core.containerpool.docker.HttpUtils not quite easy to pull over, it has a lot of dependencies from main repo around entities and response are interpreted

[csantanapr]

There are too many runtime repos, and is better to leverage common test code and pull via maven install