Picture support for Generic Object Definitions

[jntullo]

This PR allows for the creation and specification of pictures for Generic Object Definitions.

Usage

Specifying new pictures

Can specify an extension and Base64 Content for a picture which will then get created and added to the Generic Object Definition:

{
  "name":"LoadBalancer",
  "description":"LoadBalancer description",
  "properties":{
     ...
  },
  "picture":{
    "extension":"png",
    "content":"===Base64 Content Here==="
  }
}

Specifying Existing pictures

Supports ID specification:

{
  "name":"LoadBalancer",
  "description":"LoadBalancer description",
  "properties":{
     ...
  },
  "picture":{
    "id":"1000000000001",
  }
}

Supports href specification:

{
  "name":"LoadBalancer",
  "description":"LoadBalancer description",
  "properties":{
     ...
  },
  "picture":{
    "href":"/api/pictures/1000000000001",
  }
}

@miq-bot add_label enhancement
@miq-bot assign @abellotti

cc: @chalettu @AparnaKarve

[abellotti]

😍 the flexible inbound signature. will review shortly.

[miq-bot]

Checked commit jntullo@fb69748 with ruby 2.3.3, rubocop 0.47.1, and haml-lint 0.20.0
2 files checked, 0 offenses detected
Everything looks fine. 🏆

[abellotti]

Thanks @jntullo for this Enhancement.

Just kicked the tire here 👍

Some test queries post the create/updates I've tried:

api get generic_objects --expand=resources --attributes=generic_object_definition.picture
api get generic_objects --expand=resources --attributes=generic_object_definition.picture,generic_object_definition.picture.image_href
api get generic_object_definitions --expand=resources
api get generic_object_definitions --expand=resources --attributes=picture,picture.image_href