Ensure file loading order respects dependencies.

[RobertWesner]

📌 Pull Request

Description

This PR implements a proper plugin loading order to respect dependencies.

A ABC B C D E F G H

B depends on D
C depends on D
D depends on A
H depends on B
ABC depends on A, B, C

Motivation & Context

A proper standalone Kotlin plugin is impossible without this feature.

Type of Change

Please tick all that apply:

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ⚡ Performance improvement
• 🧩 New feature (non-breaking)
• 🔧 Refactor / cleanup (no functional changes)
• 🔥 Crash / exploit fix
• 📚 Documentation update
• ❗ Breaking change (may affect plugins or server behavior)

Testing Performed

Debugged right into SimplePluginManager::loadPlugins():194, checked the order, was happy with the results.

• Compiled successfully with mvn clean package
• Tested on a Beta 1.7.3 server
• Existing functionality verified
• Edge cases considered

Logs / Screenshots (if applicable)

dummy_jars.zip

Checklist

Please confirm the following:

• No unnecessary formatting or whitespace-only changes
• Changes are compatible with Minecraft Beta 1.7.3
• No dependencies have been added without discussion with the RetroMC team

Thanks for contributing to Project Poseidon!

[RobertWesner]

Forgot the file extension/filter matching, will add that.

[RobertWesner]

Closing in favor of #188