Move and rewrite

[Sebobo]

Plan

As the original plugin is not maintained anymore, we forked the plugin to here into the Flowpack organisation and maintain it here with the community as "close-to-the-core"-plugin.

Part of this work has already been done by @Sebobo and some budget from the Neos core was given to finish the first Flowpack version of the package. See https://discuss.neos.io/t/funding-request-other-topics-2023/6476/2?u=sebobo

Todos & ideas

• Fork to Flowpack
• Replace circle ci stuff with GitHub actions
• Update readme and related information to package move etc.
• Frontend rewrite, see FEATURE: Reimplement frontend as web component #1
• Backend rewrite
  • PHP 8.1+
  • Extensibility
  • Custom performance metric tracking
• Production mode