[TASK] Initial commit with basic product setup

Assets/Mapbox SDK/Mapbox/Unity/SourceLayers/ISubLayerModeling.cs

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+using Mapbox.Unity.Map;
+
+namespace Mapbox.Unity.SourceLayers
+{
+	public interface ISubLayerModeling
+	{
+		ISubLayerCoreOptions CoreOptions { get; }
+		ISubLayerExtrusionOptions ExtrusionOptions { get; }
+		ISubLayerColliderOptions ColliderOptions { get; }
+		ISubLayerLineGeometryOptions LineOptions { get; }
+		
+		/// <summary>
+		/// Enable terrain snapping for features which sets vertices to terrain
+		/// elevation before extrusion.
+		/// </summary>
+		/// <param name="isEnabled">Enabled terrain snapping</param>
+		void EnableSnapingTerrain(bool isEnabled);
+
+		/// <summary>
+		/// Enable combining individual features meshes into one to minimize gameobject
+		/// count and draw calls.
+		/// </summary>
+		/// <param name="isEnabled"></param>
+		void EnableCombiningMeshes(bool isEnabled);
+	}
+}