Add sample for Magic Leap integration

Assets/CesiumForUnitySamples/Materials/CesiumSamplesOneOverlay.mat

@@ -58,15 +58,7 @@ Material:
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
-    - _overlay0Texture:
-        m_Texture: {fileID: 0}
-        m_Scale: {x: 1, y: 1}
-        m_Offset: {x: 0, y: 0}
-    - _overlay1Texture:
-        m_Texture: {fileID: 0}
-        m_Scale: {x: 1, y: 1}
-        m_Offset: {x: 0, y: 0}
-    - _overlay2Texture:
+    - _overlayTexture_0:
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
@@ -122,17 +114,13 @@ Material:
     - _normalTextureCoordinateIndex: 0
     - _occlusionStrength: 0
     - _occlusionTextureCoordinateIndex: 0
-    - _overlay0TextureCoordinateIndex: 0
-    - _overlay1TextureCoordinateIndex: 0
-    - _overlay2TextureCoordinateIndex: 0
+    - _overlayTextureCoordinateIndex_0: 0
     m_Colors:
     - _BaseColor: {r: 1, g: 1, b: 1, a: 0}
     - _baseColorFactor: {r: 1, g: 1, b: 1, a: 1}
     - _emissiveFactor: {r: 0, g: 0, b: 0, a: 0}
     - _metallicRoughnessFactor: {r: 0, g: 0, b: 0, a: 0}
-    - _overlay0TranslationAndScale: {r: 0, g: 0, b: 1, a: 1}
-    - _overlay1TranslationAndScale: {r: 0, g: 0, b: 1, a: 1}
-    - _overlay2TranslationAndScale: {r: 0, g: 0, b: 1, a: 1}
+    - _overlayTranslationAndScale_0: {r: 0, g: 0, b: 1, a: 1}
   m_BuildTextureStacks: []
 --- !u!114 &3735925112415471796
 MonoBehaviour:

Assets/CesiumForUnitySamples/Materials/CesiumSamplesOneOverlay.shadergraph

@@ -1405,7 +1405,7 @@
     "m_Type": "UnityEditor.ShaderGraph.Texture2DMaterialSlot",
     "m_ObjectId": "6ddd4c9aa57045799048b6c3512dcb9d",
     "m_Id": 0,
-    "m_DisplayName": "overlay0Texture",
+    "m_DisplayName": "overlayTexture_0",
     "m_SlotType": 1,
     "m_Hidden": false,
     "m_ShaderOutputName": "Out",
@@ -1587,10 +1587,10 @@
     "m_Guid": {
         "m_GuidSerialized": "beff4a7f-447f-4346-86e3-30293bd4cd64"
     },
-    "m_Name": "overlay0Texture",
+    "m_Name": "overlayTexture_0",
     "m_DefaultRefNameVersion": 1,
-    "m_RefNameGeneratedByDisplayName": "overlay0Texture",
-    "m_DefaultReferenceName": "_overlay0Texture",
+    "m_RefNameGeneratedByDisplayName": "overlayTexture_0",
+    "m_DefaultReferenceName": "_overlayTexture_0",
     "m_OverrideReferenceName": "",
     "m_GeneratePropertyBlock": true,
     "m_UseCustomSlotLabel": false,
@@ -1755,10 +1755,10 @@
     "m_Guid": {
         "m_GuidSerialized": "89712bfa-4317-45a9-a834-00be8d12e0bc"
     },
-    "m_Name": "overlay0TranslationAndScale",
+    "m_Name": "overlayTranslationAndScale_0",
     "m_DefaultRefNameVersion": 1,
-    "m_RefNameGeneratedByDisplayName": "overlay0TranslationAndScale",
-    "m_DefaultReferenceName": "_overlay0TranslationAndScale",
+    "m_RefNameGeneratedByDisplayName": "overlayTranslationAndScale_0",
+    "m_DefaultReferenceName": "_overlayTranslationAndScale_0",
     "m_OverrideReferenceName": "",
     "m_GeneratePropertyBlock": true,
     "m_UseCustomSlotLabel": false,
@@ -2039,7 +2039,7 @@
     "m_Type": "UnityEditor.ShaderGraph.Vector4MaterialSlot",
     "m_ObjectId": "c93430b52d2743f8a47d0da77a62080d",
     "m_Id": 0,
-    "m_DisplayName": "overlay0TranslationAndScale",
+    "m_DisplayName": "overlayTranslationAndScale_0",
     "m_SlotType": 1,
     "m_Hidden": false,
     "m_ShaderOutputName": "Out",