Better resourceref flexibility (#149)

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

plugins/modules/gcp_compute_target_pool.py

@@ -61,10 +61,9 @@ options:
       pool in the "force" mode, where traffic will be spread to the healthy instances
       with the best effort, or to all instances when no instance is healthy.
     - 'This field represents a link to a TargetPool resource in GCP. It can be specified
-      in two ways. You can add `register: name-of-resource` to a gcp_compute_target_pool
-      task and then set this backup_pool field to "{{ name-of-resource }}" Alternatively,
-      you can set this backup_pool to a dictionary with the selfLink key where the
-      value is the selfLink of your TargetPool'
+      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_pool
+      task and then set this backup_pool field to "{{ name-of-resource }}"'
     required: false
   description:
     description:
@@ -91,10 +90,10 @@ options:
       checks pass. If not specified it means all member instances will be considered
       healthy at all times.
     - 'This field represents a link to a HttpHealthCheck resource in GCP. It can be
-      specified in two ways. You can add `register: name-of-resource` to a gcp_compute_http_health_check
-      task and then set this health_check field to "{{ name-of-resource }}" Alternatively,
-      you can set this health_check to a dictionary with the selfLink key where the
-      value is the selfLink of your HttpHealthCheck'
+      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_http_health_check task and then set this health_check field to
+      "{{ name-of-resource }}"'
     required: false
   instances:
     description:
@@ -159,7 +158,7 @@ backupPool:
     pool in the "force" mode, where traffic will be spread to the healthy instances
     with the best effort, or to all instances when no instance is healthy.
   returned: success
-  type: dict
+  type: str
 creationTimestamp:
   description:
   - Creation timestamp in RFC3339 text format.
@@ -192,7 +191,7 @@ healthCheck:
     checks pass. If not specified it means all member instances will be considered
     healthy at all times.
   returned: success
-  type: dict
+  type: str
 id:
   description:
   - The unique identifier for the resource.
@@ -250,11 +249,11 @@ def main():
     module = GcpModule(
         argument_spec=dict(
             state=dict(default='present', choices=['present', 'absent'], type='str'),
-            backup_pool=dict(type='dict'),
+            backup_pool=dict(),
             description=dict(type='str'),
             failover_ratio=dict(type='str'),
-            health_check=dict(type='dict'),
-            instances=dict(type='list', elements='dict'),
+            health_check=dict(),
+            instances=dict(type='list'),
             name=dict(required=True, type='str'),
             session_affinity=dict(type='str', choices=['NONE', 'CLIENT_IP', 'CLIENT_IP_PROTO']),
             region=dict(required=True, type='str'),