Replace PNGs with JPEGs to make ARKit happy

Assets/Scenes/ImageTracking/Images/Rafflesia.jpg.meta

     wrapU: -1
     wrapV: -1
     wrapW: -1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
   spriteMode: 0

Assets/Scenes/ImageTracking/Images/ReferenceImageLibrary.asset

   m_Script: {fileID: 11500000, guid: 848409ee8ba454f42a5ddff137688a27, type: 3}
   m_Name: ReferenceImageLibrary
   m_EditorClassIdentifier: 
-  m_GuidLow: 5618914161718809546
-  m_GuidHigh: 962571746787149481
+  m_GuidLow: 5438900029218683827
+  m_GuidHigh: 11338665651040755373
-      m_GuidLow: 5342371807212194309
-      m_GuidHigh: 7975793277121114810
+      m_GuidLow: 5332104792803380197
+      m_GuidHigh: 185310804734996668
-    m_Size: {x: 0.254, y: 0.254}
+    m_Size: {x: 0.254, y: 0.16891992}
+  - m_SerializedGuid:
+      m_GuidLow: 4688767676970561261
+      m_GuidHigh: 9713720137873368247
+    m_SerializedTextureGuid:
+      m_GuidLow: 16430241910255274575
+      m_GuidHigh: 3143750354108030859
+    m_Size: {x: 0.1, y: 0.1}
+    m_SpecifySize: 1
+    m_Name: Logo
+    m_Texture: {fileID: 2800000, guid: 5a804a4ff1f7e4038b1f1e6f4ad8a02b, type: 3}
+  - m_SerializedGuid:
+      m_GuidLow: 5602505921028117032
+      m_GuidHigh: 208412801924047543
+    m_SerializedTextureGuid:
+      m_GuidLow: 288924497207985411
+      m_GuidHigh: 4143232447317295274
+    m_Size: {x: 0.05, y: 0.05}
+    m_SpecifySize: 1
+    m_Name: QRCode
+    m_Texture: {fileID: 2800000, guid: a6fd8503774c0402aa403884f5b77f39, type: 3}

Assets/Scenes/ImageTracking/Images/QRCode.jpg.meta

 fileFormatVersion: 2
-guid: bf2e9553ee29615409e2c1613bed5621
+guid: a6fd8503774c0402aa403884f5b77f39
-  fileIDToRecycleName: {}
+  internalIDToNameTable: []
-  serializedVersion: 7
+  serializedVersion: 9
   mipmaps:
     mipMapMode: 0
     enableMipMap: 1
   compressionQualitySet: 0
   textureFormatSet: 0
   platformSettings:
-  - serializedVersion: 2
+  - serializedVersion: 3
     buildTarget: DefaultTexturePlatform
     maxTextureSize: 2048
     resizeAlgorithm: 0
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []
     spriteID: 
+    internalID: 0
+    secondaryTextures: []
   spritePackingTag: 
   pSDRemoveMatte: 0
   pSDShowRemoveMatteOption: 0

Assets/Scenes/ImageTracking/Images/unitylogowhiteonblack.jpg.meta

 fileFormatVersion: 2
-guid: 4560bbb1efc550f4ab718112f77f2454
+guid: 5a804a4ff1f7e4038b1f1e6f4ad8a02b
-  fileIDToRecycleName: {}
+  internalIDToNameTable: []
-  serializedVersion: 7
+  serializedVersion: 9
   mipmaps:
     mipMapMode: 0
     enableMipMap: 1
   compressionQualitySet: 0
   textureFormatSet: 0
   platformSettings:
-  - serializedVersion: 2
+  - serializedVersion: 3
     buildTarget: DefaultTexturePlatform
     maxTextureSize: 2048
     resizeAlgorithm: 0
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []
     spriteID: 
+    internalID: 0
+    secondaryTextures: []
   spritePackingTag: 
   pSDRemoveMatte: 0
   pSDShowRemoveMatteOption: 0