Expose all related Policy objects for a given device via GraphQL

[Kircheneer]

Environment

• Nautobot version: 1.3.3
• nautobot-plugin-firewall-model version: 0.1.0.beta3

Proposed Functionality

Given a query like

query ($device_id: ID!) {
  device(id: $device_id) {
    policies
  }
}

I want all Policy objects to be returned for that given device, as in

• Policy objects that are directly assigned to devices
• Policy objects that are assigned to devices through dynamic groups

Use Case

Get all rules for a given device, specific use case is using nautobot-golden-config to generate ACLs as part of the configuration.