Simple params specs

I do not think this is going to work for Cloud conenct graphs.

If you run CC graph nobody uses nested params since it is not customary (and not easy) so I would prefer the params to be merged directly into params to look like this

  {
    :PROCESS_ID => '1',
    :EXECUTABLE => 'main.rb',
    :a => 'a',
    :b => 'b'
  }
 
The serialized JSON approach should be used only when it is a ruby process since decoding params is easy in Ruby and can be part of brick.