fixes #3140 - API to allow importing of puppet classes

fixes #3165 - /api/fact_values route missing from v2 API

fixes #1244 - add smart proxy feature refresh link + API call

fixes #2810 - more restful API v2 JSON responses in puppetclasses

NOTE: breaking changes to API v2 api/lookup_keys does not exist, replaced by api/smart_variables and api/smart_class_parameters

fixes #3101 - list available images for CRs, add iam_role field to images API

Fixes #2984 - API v1/v2 StatisticsController and remove JSON from UI controller

fixes #3046 - add NIC CRUD, power and boot operations API

Fixes #2414 - Move puppet report processing code to the report processor

This creates a API route for POST:/api/reports which matches the GET
format for reports. Tests are updated, with the report model tests
moving to the puppet-foreman module (along with the report fixtures).

Refs #2414 - Remove Puppet from facts API and Settings

Reports are still in progress and will come in a later PR
DB schema is updated to not need puppet/rails

fixes #2898 - missing API v2 nested routes for config_templates/:id/locations & organizations