Implement a split proxy contract for handling the integration of Obol with the Lido exits

[boulder225]

🎯 Problem to be solved

• Define a clear process for handling the integration of Obol with the Lido exits, specifically regarding implementing a Splitter.

🛠️ Proposed solution

• Document the integration process for Obol and the Lido exits, emphasizing the configuration of the Splitter.
• Consider naming the real split proxy contract as LidoSplit.sol and deploy it.
• Implement the required reward mechanism for the integration.
• Facilitate the role transfer to a Gnosis Safe as needed.
• Develop a foundry script capable of receiving node operator parameters and automating the deployment, and split configuration.