New tool: `run_plugin_script` Scripting Binary Ninja

[ttimasdf]

Implement a new tool to allow LLM to run arbitrary scripts in the context of binary ninja.

Preferably, also support a "Sandbox Level"

• High: only allow operations on bv: BinaryView
• Medium: Support all Magic Console Variables and BinaryNinja APIs.
• Low: Unrestricted code execution (vulnerable to prompt injection)