Better resourceref flexibility (#149)

<!-- This change is generated by MagicModules. -->
/cc @rambleraptor

plugins/modules/gcp_compute_vpn_tunnel.py

@@ -63,19 +63,18 @@ options:
     description:
     - URL of the Target VPN gateway with which this VPN tunnel is associated.
     - 'This field represents a link to a TargetVpnGateway resource in GCP. It can
-      be specified in two ways. You can add `register: name-of-resource` to a gcp_compute_target_vpn_gateway
-      task and then set this target_vpn_gateway field to "{{ name-of-resource }}"
-      Alternatively, you can set this target_vpn_gateway to a dictionary with the
-      selfLink key where the value is the selfLink of your TargetVpnGateway'
+      be specified in two ways. First, you can place in the selfLink of the resource
+      here as a string Alternatively, you can add `register: name-of-resource` to
+      a gcp_compute_target_vpn_gateway task and then set this target_vpn_gateway field
+      to "{{ name-of-resource }}"'
     required: true
   router:
     description:
     - URL of router resource to be used for dynamic routing.
     - 'This field represents a link to a Router resource in GCP. It can be specified
-      in two ways. You can add `register: name-of-resource` to a gcp_compute_router
-      task and then set this router field to "{{ name-of-resource }}" Alternatively,
-      you can set this router to a dictionary with the selfLink key where the value
-      is the selfLink of your Router'
+      in two ways. First, you can place in the selfLink of the resource here as a
+      string Alternatively, you can add `register: name-of-resource` to a gcp_compute_router
+      task and then set this router field to "{{ name-of-resource }}"'
     required: false
   peer_ip:
     description:
@@ -198,12 +197,12 @@ targetVpnGateway:
   description:
   - URL of the Target VPN gateway with which this VPN tunnel is associated.
   returned: success
-  type: dict
+  type: str
 router:
   description:
   - URL of router resource to be used for dynamic routing.
   returned: success
-  type: dict
+  type: str
 peerIp:
   description:
   - IP address of the peer VPN gateway. Only IPv4 is supported.
@@ -281,8 +280,8 @@ def main():
             state=dict(default='present', choices=['present', 'absent'], type='str'),
             name=dict(required=True, type='str'),
             description=dict(type='str'),
-            target_vpn_gateway=dict(required=True, type='dict'),
-            router=dict(type='dict'),
+            target_vpn_gateway=dict(required=True),
+            router=dict(),
             peer_ip=dict(required=True, type='str'),
             shared_secret=dict(required=True, type='str'),
             ike_version=dict(default=2, type='int'),