Code generation for services and protocols

[GregUtas]

Implement a web-based tool for generating most of the tedious "boilerplate" code for

• a service's subclasses of
  • Service, State, Event, and Trigger (including many function bodies)
  • Initiator, ServiceSM, and EventHandler (function shells to be filled in with service logic)
• a protocol's subclasses of
  • Protocol, Signal, and Parameter (including many function bodies)
  • InputHandler, Message, and ProtocolSM (function shells to be filled in with protocol logic)
• the Factory subclass (a mix of function bodies and shells)