Feature: Prefab Tiling

[WooshiiDev]

Feature Description
Prefabs can be "tiled" beside existing instances in the current scene. The selected prefab will snap seamlessly against the current mesh face world builder hits. It will attempt to centre the prefab against the face too, allowing for tiling that can be repeated.

Reason for feature
One of the most tedious parts of level design comes from constant duplication/copy-pasting of the same assets that are aligned together. This will speed this up massively, while also providing an easy way to snap any asset against others.