Make lipsum project generator also fill in project description
Summary:
`./bin/lipsum` allows to fill up a Phorge instance with bogus data for testing. When creating a project, the code creates a project title, project status, random subscribers/members and picks a random project creator, but does not set a project description.
Make this code also set a project description (which is implemented as a custom field).
Closes T15748
Test Plan:
* On the CLI, use `./bin/lipsum generate projects` to create a bogus project.
* In the web browser, go to `/project/query/all/` and open the project page of the recently created bogus project: See no project description.
* Apply this change.
* On the CLI, use `./bin/lipsum generate projects` to create another bogus project.
* In the web browser, go to `/project/query/all/` and open the project page of the recently created bogus project: See a random project description.
Reviewers: O1 Blessed Committers, 20after4
Reviewed By: O1 Blessed Committers, 20after4
Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Maniphest Tasks: T15748
Differential Revision: https://we.phorge.it/D25545