OneFlow: Support VRouter in roles

[MiguelERuiz]

Description
It is required to enrich OneFlow Template syntax by supporting vrouters declaration. So that, VRouters will have the following syntax:

{
   "name": "VNF",
   "type": "vr",
   "template_id": 3
   "ha_mode": true,
   "floating_ip": "3.246.34.2"
}

Here the description of each value:

Property	Type	Description	Required/Optional
name	String	VRouter name	Required
type	String	Role type	Required
template_id	Integer	VRouter template id	Required
ha_mode	Boolean	HA mode	Optional
floating_ip	String	Floating IP	Optional

With these changes, VM templates will be also affected, so vm_template will be renamed by template_id and their type will be vm.

Use case
With this new feature VRouters will be declared from a OneFlow Template and make it easier the interaction with this kind of resource
Interface Changes
OneFlow API

Progress Status

• Code committed
• Testing - QA
• Documentation (Release notes - resolved issues, compatibility, known issues)