Include plugin interfaces in interfaces_assignment module (#129)

* Include plugin interfaces in interfaces_assignment module

* Add plugin interfaces bugfix changelog

Author: DonGiovanni83

changelogs/fragments/129-include-plugin-interfaces-for-assignments.yml

@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - interfaces_assignments - Include plugin interfaces such as VLAN, VXLANs etc. in validations.

plugins/module_utils/interfaces_assignments_utils.py

@@ -308,9 +308,16 @@ def get_interfaces(self) -> List[InterfaceAssignment]:
             "php_requirements"
         ]
         php_command = """
+                    /* get physical network interfaces */
                     foreach (get_interface_list() as $key => $item) {
                         echo $key.',';
                     }
+                    /* get virtual network interfaces */
+                    foreach (plugins_devices() as $item){
+                        foreach ($item["names"] as $key => $if ) {
+                            echo $key.',';
+                        }
+                    }
                     """
 
         # run php function