Add Plugin Support for BizHawk Emulator

📋 Summary

Add official plugin support for BizHawk, a multi-system emulator designed for accuracy and tool-assisted speedruns (TAS), allowing seamless setup, configuration, and launching directly from LaunchBox.

🎯 Feature Overview

This plugin would:

• Automatically download and configure BizHawk within LaunchBox.

• Enable multi-system support (NES, SNES, GB, GBA, Genesis, etc.) with intelligent core assignment.

• Support advanced settings via the emulator settings panel for TAS-related features and input configs.

• Optionally allow switching between standalone and libretro-based BizHawk usage.