Improve Cake Teleportation Logic

[ChampionAsh5357]

Closes #1

Improves the teleportation logic when using a cake.

It checks the following to determine where to teleport. All locations check for a safe block underneath and that the bounding box of the entity is not in anything unable to spawn.

1. Has the entity teleported from a cake in the other world? If so, spawn at that location.
2. Loop through a sixteen block area from top to bottom to check for a safe position for the entity to spawn.
3. Create a safe location at the position the entity is in.

Further work should look into better compatibility layers with other mods like #7. Though, honestly, that could use an entire rewrite to support basic datapack structuring and a custom plugin handler for more complex teleports.

[Mrbysco]

Looks good to me

[Mrbysco]

The only functionality that has changed is that the End cake no longer teleports you to the obsidian platform