[WIP][FEATURE] Site Creator

[benjaminkott]

Pull Request

Related Issues

• Closes #
• Fixes # [bug]
• Resolves # [feature/question]

Prerequisites

• [ ] Changes have been tested on TYPO3 v9.5 LTS
• [ ] Changes have been tested on TYPO3 v10.4 LTS
• [ ] Changes have been tested on TYPO3 dev-master
• [ ] Changes have been tested on PHP 7.2.x
• [ ] Changes have been tested on PHP 7.3.x
• [ ] Changes have been tested on PHP 7.4.x
• [ ] Changes have been checked for CGL compliance php-cs-fixer fix

Description

[Description of changes proposed in this pull request]

Steps to Validate

1. [First Step]
2. [Second Step]
3. [and so on...]