Clean RTP

# Clean RTP RTP datapack with chunk preloading to prevent server crash from teleporting into unloaded chunks Simply add to world and use command `/trigger rtp` to randomly teleport! Includes configurable RTP Range, RTP Cooldown, and Dimension Whitelist, so you can balance its usage as needed ## Configuration Operators can use `/function clean_rtp:__config` to configure as desired RTP Range is 10000 blocks by default Nether Max Y Position is y126 by default (to prevent rtp onto nether roof) RTP Cooldown is 6000 ticks (5 minutes) by default Whitelist includes all Vanilla Dimensions and is Enabled by default Note: If you dont know what the mod id and/or dimension name is for a dimension.. You can reference them by typing `/execute in`, and the auto-complete will list all the dimensions ## 1.16 - 1.20.6 Precise configuration of RTP Range and Nether Max Y position require macro-functions, which were introduced in 1.21. Presets are available instead for pre-1.21 config RTP Range presets include ranges 5000, 10000, 20000, 50000, 100000, 1000000 blocks Nether Max Y position can be toggled between y126 and y254. To accommodate for the vanilla nether roof at y128 and popular mods that change the nether roof to y256