add reference images and readd frame wait after resolution change

GraphicsTests/LegacySmokeTest/Assets/ReferenceImages/Gamma/Android/OpenGLES3/Oculus/SmokeTest.png.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: fea99cfefc4cd6f4380a7346390250a8
+guid: ae398200d7d1d4a4dadaa34ca227223a
 TextureImporter:
   internalIDToNameTable: []
   externalObjects: {}

GraphicsTests/LegacySmokeTest/Assets/ReferenceImages/Gamma/Android/OpenGLES3/daydream/SmokeTest.png.meta

@@ -1,12 +1,12 @@
 fileFormatVersion: 2
-guid: 626188fa68f90d2488690f5166989124
+guid: 0d5659ad44503ea4f9c79f4a6c158077
 TextureImporter:
   internalIDToNameTable: []
   externalObjects: {}
   serializedVersion: 10
   mipmaps:
     mipMapMode: 0
-    enableMipMap: 0
+    enableMipMap: 1
     sRGBTexture: 1
     linearTexture: 0
     fadeOut: 0
@@ -20,7 +20,7 @@ TextureImporter:
     externalNormalMap: 0
     heightScale: 0.25
     normalMapFilter: 0
-  isReadable: 1
+  isReadable: 0
   streamingMipmaps: 0
   streamingMipmapsPriority: 0
   grayScaleToAlpha: 0
@@ -37,7 +37,7 @@ TextureImporter:
     wrapU: -1
     wrapV: -1
     wrapW: -1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
   spriteMode: 0
@@ -62,7 +62,7 @@ TextureImporter:
     buildTarget: DefaultTexturePlatform
     maxTextureSize: 2048
     resizeAlgorithm: 0
-    textureFormat: 4
+    textureFormat: -1
     textureCompression: 1
     compressionQuality: 50
     crunchedCompression: 0

GraphicsTests/LegacySmokeTest/Assets/Tests/SmokeTest.cs

@@ -63,7 +63,8 @@ public class SmokeTest
 
         Screen.SetResolution(testSettings.ImageComparisonSettings.TargetWidth, testSettings.ImageComparisonSettings.TargetHeight, false);
 
-        //yield return new WaitForSeconds(1);
+        // need a frame to update the resolution
+        yield return new WaitForSeconds(1);
         yield return new WaitForEndOfFrame();
 
         var screenShot = new Texture2D(0, 0, TextureFormat.RGBA32, false);