Late join support

The following changes have been made since v0.4.0:

• Project folder structure changed

  • cpswt-core for core code ("c2w" prefixes removed)
  • docs for documentation
  • benchmark for benchmarking [later]
  • examples for reference example code
  • testfiles for testing purposes

• Portico 2.1.0 dependency instead of "custom" (2.1.0-LOG4J) build

• Examples

  • EchoExample - simple example to show off late joiner capabilities
  • HelloWorld - Source/Sink/PingCounter using new core code

• Modules removed

  • c2w-matlab
  • c2w-logging
  • simplefederates
  • c2w-gui

• Complete Log4J2 support throughout the whole project

• Code refactoring throughout the whole project

• Updated package names to use TLD throughout the whole project: org.cpswt.*

• New config system for federates

  • 3-level configuration support with dynamic CLI options
  • JSON support
  • Extensibility
  • see Federate configuration

• New config system for federation manager

  • script.xml dropped for experimentConfig.json
  • [pre] COA support through JSON [not working in this release]

• FederationManager

  • Lock file removed
  • Sped up initialization
  • Supporting federate types instead of federate names
  • COA execution separation from FedManager
  • Dropwizard hosting dropped, Akka-HTTP used instead
  • Generic config file loads
  • SUPPORT FOR LATE JOINER FEDERATES
  • Federate join and resign support through built-in interactions -- FederateObject approach dropped
  • Query online/resigned federates through RESTful API

• RESTful API

  • /fedmgr - GET/POST to control the FederationManager
  • /federates - GET to query online and resigned federates