[MAP EDITOR] - Terrain Prefabs + Heightmaps

[Lithrun]

How will this feature improve the game?
The main reason why map developers use the unity engine is to create custom terrain, as within AoTTG this has always been quite limited. We want to add so called "terrain prefabs" which are pre-built tiles of terrain that can be used in the in-game map editor.

Describe the functionality of the feature
Extend the custom map editor to support these terrain prefabs. Contact the mapping team to let them create some terrain prefabs

[Lithrun]

Updated to also include the extension for dynamic terrains. Players provide a heightmap and splatmap via URL, and the game will then be able to render these terrains.

When creating a terrain of this type in the editor, it will have the following fields:
Heightmap URL
Map size (width, length, height)
Splatmap URL (Optional)
Textures (just 1 or multiple if a splatmap is provided)