Configuration workflow provider (Systems plugin enhancements)

[warnerandy]

New Providers:

• ConfigurationWorkflowProvider
• WizardProvider
• FormProvider
• InputTypeLibraryProvider - A provider to deliver a JS file that contains 1 or more custom input types to be used in option types

New Models

• ConfigurationWorkflow
• ConfigurationWorkflowStep
• Wizard
• WizardStep
• OptionTypeForm

Updates:

• System (Model):
  • configurationState - a field to store the state of the configuraiton workflow in json
  • configuraitonStatus - the current status of the configuration workflow
• SystemTypeLayout (Model):
  • configurationWorkflow - a model reference to the ConfigurationWorkflow that will be used to configure the system