[TASK] Initial commit with basic product setup

Assets/Mapbox SDK/Mapbox/Unity/MeshGeneration/Modifiers/MeshModifier.cs

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+namespace Mapbox.Unity.MeshGeneration.Modifiers
+{
+	using Mapbox.Unity.MeshGeneration.Data;
+
+	public enum ModifierType
+	{
+		Preprocess,
+		Postprocess
+	}
+
+	/// <summary>
+	/// Mesh Data class and Mesh Modifier
+	/// MeshData class is used to keep data required for a mesh.Mesh modifiers recieve raw feature data and a mesh modifier, 
+	/// generate their data and keep it inside MeshData. i.e.PolygonMeshModifier is responsible for triangulating the polygon, 
+	/// so it calculates the triangle indices using the vertices and save it into MeshData.Triangles list.There's no control 
+	/// over which field a mesh modifier fills or overrides but some of the basic mesh modifier goes like this;
+	/// Polygon mesh modifier - Vertices and triangles
+	/// Line Mesh modifier - Vertices, triangles and uvs
+	/// UV modifier - uvs(only used with polygon mesh modifier)
+	/// height modifier - vertices(adds new points), triangles(for side walls), uvs(for side walls)
+	/// After running all mesh modifiers, mesh data is expected to have at least vertices and triangles set as 
+	/// they are the bare minimum to create a unity mesh object.
+	/// So the main purpose of the mesh modifiers is to fill up the mesh data class but they aren't limited to that either.
+	/// You can always create gameobjects and debug lines/spheres inside them for debugging purposes whenever you have a problem.
+	/// MeshData class also has some extra fields inside for data transfer purposes(between modifiers). i.e.Edges list 
+	/// inside mesh data isn't used for mesh itself, but it's calculated by PolygonMeshModifier and used by HeightModifier 
+	/// so to avoid calculating it twice, we're keeping it in the mesh data object. You can also extend mesh data like this 
+	/// if you ever need to save data or share information between mesh modifiers.
+	/// We fully expect developers to create their own mesh modifiers to customize the look of their world.It would probably 
+	/// take a little experience with mesh generation to be able to do this but it's the suggested way to create 
+	/// custom world objects, like blobly toonish buildings, or wobbly roads.
+	/// </summary>
+	public class MeshModifier : ModifierBase
+	{
+		public virtual ModifierType Type { get { return ModifierType.Preprocess; } }
+
+		public virtual void Run(VectorFeatureUnity feature, MeshData md, float scale)
+		{
+			Run(feature, md);
+		}
+
+		public virtual void Run(VectorFeatureUnity feature, MeshData md, UnityTile tile = null)
+		{
+
+		}
+	}
+}