Kossman's Renewable Lava

Initial release for NeoForge 26.2.

Features

• Vanilla-style renewable lava source generation
• Two lava sources can form a renewable 2x2 pool
• Works with larger valid lava source pools
• Configurable required source neighbours: 2-4
• Dimension whitelist
• Per-world enable/disable state
• /rl enable true|false
• /rl status
• Server-authoritative behavior