Changed the transport for the Bootstrap sample, from Unet to UTP (#1268)

Author: LPLafontaineB

com.unity.netcode.gameobjects/Samples/Bootstrap/Scenes/Bootstrap.unity

@@ -38,7 +38,7 @@ RenderSettings:
   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0.44657874, g: 0.49641275, b: 0.5748172, a: 1}
+  m_IndirectSpecularColor: {r: 0.44657898, g: 0.4964133, b: 0.5748178, a: 1}
   m_UseRadianceAmbientProbe: 0
 --- !u!157 &3
 LightmapSettings:
@@ -151,16 +151,16 @@ MonoBehaviour:
   m_GameObject: {fileID: 1114774665}
   m_Enabled: 1
   m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: b84c2d8dfe509a34fb59e2b81f8e1319, type: 3}
+  m_Script: {fileID: 11500000, guid: 6960e84d07fb87f47956e7a81d71c4e6, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  MessageBufferSize: 5120
-  MaxConnections: 100
-  MaxSentMessageQueueSize: 128
-  ConnectAddress: 127.0.0.1
-  ConnectPort: 7777
-  ServerListenPort: 7777
-  MessageSendMode: 0
+  m_ProtocolType: 0
+  m_MessageBufferSize: 6144
+  m_ReciveQueueSize: 128
+  m_SendQueueSize: 128
+  m_SendQueueBatchSize: 4096
+  m_ServerAddress: 127.0.0.1
+  m_ServerPort: 7777
 --- !u!114 &1114774667
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -188,7 +188,6 @@ MonoBehaviour:
     ConnectionData: 
     EnableTimeResync: 0
     TimeResyncInterval: 30
-    EnableNetworkVariable: 1
     EnsureNetworkVariableLengthSafety: 0
     EnableSceneManagement: 1
     ForceSamePrefabs: 1