VMware: new module: vmware_guest_customization_facts (#38588)

This module gathers facts about customization specification created
for virtual machine.

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

test/integration/targets/vmware_guest_customization_facts/aliases

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+cloud/vcenter
+unsupported

test/integration/targets/vmware_guest_customization_facts/tasks/main.yml

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+# Test code for the vmware_guest_customization_facts module.
+# Copyright: (c) 2018, Abhijeet Kasurde <akasurde@redhat.com>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# TODO: vcsim does not support customizationspecmanager related functionalities
+
+- name: Wait for Flask controller to come up online
+  wait_for:
+    host: "{{ vcsim }}"
+    port: 5000
+    state: started
+
+- name: kill vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/killall
+
+- name: start vcsim with no folders
+  uri:
+    url: http://{{ vcsim }}:5000/spawn?datacenter=1&cluster=1&folder=1
+  register: vcsim_instance
+
+- name: Wait for Flask controller to come up online
+  wait_for:
+    host: "{{ vcsim }}"
+    port: 443
+    state: started
+
+- debug: var=vcsim_instance
+- debug: var=vmlist
+
+- name: Gather facts about given customization spec
+  vmware_guest_customization_facts:
+    validate_certs: False
+    hostname: "{{ vcsim }}"
+    username: "{{ vcsim_instance['json']['username'] }}"
+    password: "{{ vcsim_instance['json']['password'] }}"
+    spec_name: sample_spec
+  register: vm_custom_spec_facts
+
+- debug: var=vm_custom_spec_facts
+
+- assert:
+    that:
+      - "not vm_custom_spec_facts.changed"