feat: add raycast component (ecs7)

[leanmendoza]

What does this PR change?

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How to test the changes?

1. Go to: https://play.decentraland.zone/?renderer-branch={branch_name}&{desired_url_params}
2. ...

Our Code Review Standards

https://github.com/decentraland/unity-renderer/blob/master/docs/code-review-standards.md

[github-actions[bot]]

After the CI passes:

• This branch can be previewed at https://play.decentraland.zone/?renderer-branch=feat/ecs7-add-raycast-component
• Code coverage report: https://renderer-artifacts.decentraland.org/branch-coverage/feat/ecs7-add-raycast-component
• Benchmark report: https://renderer-artifacts.decentraland.org/branch-benchmark/feat/ecs7-add-raycast-component/index.html