[Feature]: Add Crossplane as an optional component

[tuunit]

📝 Description

We would like to offer a pretemplated crossplane deployment that is integrated with our general catalog.

It should have the status: false in its ServiceDefinition to make it an optional component/service.

🎯 Use Case

Crossplane integration

📎 Additional Context

Have a look at how catalogs are structured:
https://docs.kubara.io/latest-stable/4_building_your_platform/create_catalog/

The actual repo to address those changes and open a PR, is the following:
https://github.com/kubara-io/catalogs/tree/main/general

✅ Checklist

• I have searched existing issues
• This is not a duplicate