opennebula inventory: add VM ID and VM host to data (#8532)
* Add VM id and VM host to opennebula inventory data
##### SUMMARY
<!--- Describe the change below, including rationale and design decisions --> To enable greater use of the inventory, add the ID of the VM, and the hostname of the host the VM is running on to the inventory output
<!--- HINT: Include "Fixes #nnn" if you are fixing an existing issue -->
<!--- Please do not forget to include a changelog fragment:
https://docs.ansible.com/ansible/devel/community/collection_development_process.html#creating-changelog-fragments
No need to include one for docs-only or test-only PR, and for new plugin/module PRs.
Read about more details in CONTRIBUTING.md.
-->
##### ISSUE TYPE
<!--- Pick one or more below and delete the rest.
'Test Pull Request' is for PRs that add/extend tests without code changes. -->
- Feature Pull Request
##### COMPONENT NAME
<!--- Write the SHORT NAME of the module, plugin, task or feature below. --> opennebula.py
##### ADDITIONAL INFORMATION
<!--- Include additional information to help people understand the change here --> <!--- A step-by-step reproduction of the problem is helpful if there is no related issue -->
<!--- Paste verbatim command output below, e.g. before and after your change -->
```paste below
"host": "foo23.host",
"id": 1234,
```
* Create 8532-expand-opennuebula-inventory-data.yml
* Update opennebula.py
* Update changelogs/fragments/8532-expand-opennuebula-inventory-data.yml
Co-authored-by: Felix Fontein <felix@fontein.de>
* Add check for empty records and add test
* fix attribute test
* fix attribute test
* fix attribute test
* fix attribute test
* Update plugins/inventory/opennebula.py
Co-authored-by: Felix Fontein <felix@fontein.de>
* update as per guidance
* restore attribute checks
* fix attr
* fix indent
* PR Fixes
* add attribute check in case of empty variable
---------
Co-authored-by: Felix Fontein <felix@fontein.de>
Co-authored-by: Александр Бакановский <abakanovskii@astralinux.ru>
(cherry picked from commit 24b74cc4b9)
Co-authored-by: Tom Paine <github@aioue.net>