Dev spatial awareness (#20)

* added initial files for spatial awareness

* Implemented LuminSpatialObserver

* blocked out platform support

* removed a few more base profile references

Inspectors/LuminSpatialMeshObserverProfileInspector.cs

@@ -0,0 +1,14 @@
+// Copyright (c) XRTK. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+
+using UnityEditor;
+using XRTK.Inspectors.Profiles.SpatialAwareness;
+using XRTK.Lumin.Profiles;
+
+namespace XRTK.Lumin.Inspectors
+{
+    [CustomEditor(typeof(LuminSpatialMeshObserverProfile))]
+    public class LuminSpatialMeshObserverProfileInspector : BaseMixedRealitySpatialMeshObserverProfileInspector
+    {
+    }
+}

LuminApi.cs

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+// Copyright (c) XRTK. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+
+#if PLATFORM_LUMIN
+
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Experimental.XR;
+using UnityEngine.XR.MagicLeap;
+
+namespace XRTK.Lumin
+{
+    /// <summary>
+    /// Shamelessly lifted from the UnityEngine.XR.MagicLeap packages, but Unity had to make their class internal. Boo.
+    /// </summary>
+    internal static class LuminApi
+    {
+        private const string UNITY_MAGIC_LEAP_DLL = "UnityMagicLeap";
+
+        [DllImport(UNITY_MAGIC_LEAP_DLL)]
+        public static extern void UnityMagicLeap_MeshingUpdateSettings(MeshingSettings newSettings);
+
+        [DllImport(UNITY_MAGIC_LEAP_DLL)]
+        public static extern void UnityMagicLeap_MeshingSetLod(MLSpatialMapper.LevelOfDetail lod);
+
+        [DllImport(UNITY_MAGIC_LEAP_DLL)]
+        public static extern void UnityMagicLeap_MeshingSetBounds(Vector3 center, Quaternion rotation, Vector3 extents);
+
+        [DllImport(UNITY_MAGIC_LEAP_DLL)]
+        public static extern void UnityMagicLeap_MeshingSetBatchSize(int batchSize);
+
+        [DllImport(UNITY_MAGIC_LEAP_DLL)]
+        public static extern IntPtr UnityMagicLeap_MeshingAcquireConfidence(TrackableId meshId, out int count);
+
+        [DllImport(UNITY_MAGIC_LEAP_DLL)]
+        public static extern void UnityMagicLeap_MeshingReleaseConfidence(TrackableId meshId);
+
+        [Flags]
+        public enum MeshingFlags
+        {
+            None = 0,
+            PointCloud = 1,
+            ComputeNormals = 2,
+            ComputeConfidence = 4,
+            Planarize = 8,
+            RemoveMeshSkirt = 16, // 0x00000010
+            IndexOrderCCW = 32, // 0x00000020
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct MeshingSettings
+        {
+            public MeshingFlags flags;
+            public float fillHoleLength;
+            public float disconnectedComponentArea;
+        }
+    }
+}
+
+#endif // PLATFORM_LUMIN

Profiles/LuminSpatialMeshObserverProfile.cs

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+// Copyright (c) XRTK. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+
+using UnityEngine;
+using XRTK.Definitions.Utilities;
+using XRTK.Providers.SpatialObservers;
+
+namespace XRTK.Lumin.Profiles
+{
+    [CreateAssetMenu(menuName = "Mixed Reality Toolkit/Spatial Observers/Lumin Spatial Mesh Data Provider Profile", fileName = "LuminMeshObserverProfile", order = (int)CreateProfileMenuItemIndices.SpatialAwarenessDataProviders)]
+    public class LuminSpatialMeshObserverProfile : BaseMixedRealitySpatialMeshObserverProfile { }
+}