Add Plugin Support for ShadPS4 and ShadPS4 Plus Emulators

📋 Summary

Add official plugin support for ShadPS4 and ShadPS4 Plus, emerging PlayStation 4 emulators that aim to provide early-stage PS4 emulation for Windows. This would simplify integration and testing of compatible PS4 titles within LaunchBox.

🎯 Feature Overview

This plugin would:

• Enable automatic setup of ShadPS4 or ShadPS4 Plus in LaunchBox.

• Detect PS4 titles and associate them with the correct emulator.

• Allow users to configure emulator paths and command-line options through the standard emulator settings panel.

• Help prepare LaunchBox for future PS4 compatibility as the emulator matures.