CATROID-1611 Add CLT for GoToFront brick

[Frajhamster]

Added a CLT for a GoToFront brick.

Your checklist for this pull request

Please review the contributing guidelines and wiki pages of this repository.

• Include the name of the Jira ticket in the PR’s title
• Include a summary of the changes plus the relevant context
• Choose the proper base branch (develop)
• Confirm that the changes follow the project’s coding guidelines
• Verify that the changes generate no compiler or linter warnings
• Perform a self-review of the changes
• Verify to commit no other files than the intentionally changed ones
• Include reasonable and readable tests verifying the added or changed behavior
• Confirm that new and existing unit tests pass locally
• Check that the commits’ message style matches the project’s guideline
• Stick to the project’s gitflow workflow
• Verify that your changes do not have any conflicts with the base branch
• After the PR, verify that all CI checks have passed
• Post a message in the catroid-stage or catroid-ide Slack channel and ask for a code reviewer

[reichli]

I like the general approach of the test, how you are using the ability to interact with the sprite/ball as a means to verify that it's actually come to the front.

There are two things that should be added before we merge this:

• Could you please additionally verify that the ball's current look is actually rendered at that click position? It is sufficient to check the color of a pixel at that position.
• Please remove any unused resources from the project (sounds, etc.) that would otherwise unnecessarily bloat the file.

Thank you!