Tidy up validate-modules ignores for cloud/google modules (#1265)

* fixed validation-modules for plugins/modules/cloud/google/gcdns_record.py

* fixed validation-modules for plugins/modules/cloud/google/gcdns_zone.py

* fixed validation-modules for plugins/modules/cloud/google/gce_eip.py

* fixed validation-modules for plugins/modules/cloud/google/gce_img.py

* fixed validation-modules for plugins/modules/cloud/google/gce_instance_template.py

* fixed validation-modules for plugins/modules/cloud/google/gce_labels.py

* fixed validation-modules for plugins/modules/cloud/google/gce_lb.py

* fixed validation-modules for plugins/modules/cloud/google/gce_mig.py

* fixed validation-modules for plugins/modules/cloud/google/gce_net.py

* fixed validation-modules for plugins/modules/cloud/google/gce_pd.py

* fixed validation-modules for plugins/modules/cloud/google/gce_snapshot.py

* fixed validation-modules for plugins/modules/cloud/google/gce_tag.py

* fixed validation-modules for plugins/modules/cloud/google/gcp_backend_service.py

* fixed validation-modules for plugins/modules/cloud/google/gcp_forwarding_rule.py

* fixed validation-modules for plugins/modules/cloud/google/gcp_healthcheck.py

* fixed validation-modules for plugins/modules/cloud/google/gcp_target_proxy.py

* fixed validation-modules for plugins/modules/cloud/google/gcpubsub_info.py

* fixed validation-modules for plugins/modules/cloud/google/gcpubsub.py

* fixed validation-modules for plugins/modules/cloud/google/gcp_url_map.py

* fixed validation-modules for plugins/modules/cloud/google/gcspanner.py

* fixed validation-modules for plugins/modules/cloud/google/gc_storage.py

* adjust parameter description in gce_eip.py

* fixed validation-modules for plugins/modules/cloud/google/gce.py

* removed extra type definition

* reformatted long lines

* Tidy up validate-modules ignores for cloud/google modules

* gc_storage.py: fixed parameter to be overwrite and alias force, instead of the other way around

* rolled back a number of ignore lines that ansible 2.9 believes to defy sanity

* gce_instance_template.py: the metadata parameter brings no definition whatsoever in argument_spec, causing a number of problems. Rolling back for now.

* Fixes on docs from the PR

plugins/modules/cloud/google/gcspanner.py

@@ -28,15 +28,18 @@ author:
   - Tom Melendez (@supertom) <tom@supertom.com>
 options:
   configuration:
+    type: str
     description:
        - Configuration the instance should use.
        - Examples are us-central1, asia-east1 and europe-west1.
     required: yes
   instance_id:
+    type: str
     description:
        - GCP spanner instance name.
     required: yes
   database_name:
+    type: str
     description:
        - Name of database contained on the instance.
   force_instance_delete:
@@ -45,20 +48,35 @@ options:
     type: bool
     default: 'no'
   instance_display_name:
+    type: str
     description:
        - Name of Instance to display.
        - If not specified, instance_id will be used instead.
   node_count:
+    type: int
     description:
        - Number of nodes in the instance.
     default: 1
   state:
+    type: str
     description:
     - State of the instance or database. Applies to the most granular resource.
     - If a C(database_name) is specified we remove it.
     - If only C(instance_id) is specified, that is what is removed.
     choices: [ absent, present ]
     default: present
+  project_id:
+    type: str
+    description:
+      - your GCE project ID
+  credentials_file:
+    type: str
+    description:
+      - path to the JSON file associated with the service account email
+  service_account_email:
+    type: str
+    description:
+      - service account email
 '''
 
 EXAMPLES = '''