Add support for --help flag in core

[zoe-codez]

Passing the --help flag should cause the application to print a document to the console describing the way the configuration system was wired together. This work MUST be done prior to wiring any modules, so additional logs will not be emitted

This command will:

• iterate through each project going into the application
• print out a list of all configuration properties
  • name, description, type, module level default value, value enum, required state
  • environment variable / --switch that can be used to define the value

A related flag should also be introduced to just dump the data as json, for processing by other scripts

[zoe-codez]

Blocked by #86