Play specifc to standard SBT Maven project layout

• Implement standard SBT Maven project layout as documented at:
  https://playframework.com/documentation/2.4.x/Anatomy
• Implement basic tests for both psmaster1 specific and psmod1 module usage

First draft POC Play 2.4 application including a custom module

Basic Play 2.4 application made from play-scala template. POC for psmod1 module inclusion.

• In build.sbt - Includes play.modules.enabled += com.escalesoft.psmod1.Psmod1Module
• In conf/application.conf - Includes "com.escalesoft" %% "psmod1" % "0.0.2-SNAPSHOT" dependency
• In conf/routes - Includes modules routing as -> /psmod1 psmod1.Routes