Enable logs retrieval after course deletion by storing metadata

[vithushau]

This PR addresses the issue in #1

To Test

Create a test site with a course (use admin/tool/generator/cli/maketestsite.php).

Create a category where you can move the course into.

Move the course into the the newly created category.

Open admin/tool/lifecycle/workflowdrafts.php and click "Create new workflow" button.

Give the workflow a new title, then click "Save changes".

From the "Add new trigger instance" dropdown, select "Categories Trigger"

Give the new trigger a name, and Select the Category from the dropdown then click Save changes.

From the "Add new step instance" dropdown, select "Backup course log step"

Give the new step a name, then click "Save changes".

Open admin/tool/lifecycle/workflowdrafts.php and click the Activate button for the newly created workflow.

In a terminal execute the following command

php admin/cli/scheduled_task.php --execute="\tool_lifecycle\task\lifecycle_task"

After executing the task, make sure the log file is generated for that course by checking this link:

admin/tool/lcbackupcourselogstep/logs.php

After this, delete the course by going to /course/management.php and deleting the course that you used to create a log file.

Then, open this page: admin/tool/lcbackupcourselogstep/logs.php
Confirm you can still see the log file with the course name and ID (confirm in the database that the course is deleted and that the mdl_tool_lcbackupcourselogstep_metadata table contains this data).

[ScottVerbeek]

Hi @vithushau please resolve the moodle-plugin-ci codechecker issues.

[ScottVerbeek]

Looks good to me thanks @vithushau