feat: Unity Transport + Relay (Unity-Technologies#887)

* Adding support for UTP/Unity Relay in Netcode for GameObjects

Co-authored-by: Andrew Spiering <aspiering@gmail.com>
Co-authored-by: Andrew Spiering <andrews@unity3d.com>
Co-authored-by: Fernando Galandrini <fernando.galandrini@gmail.com>
Co-authored-by: Iurii Zakipnyi <jura.zakipniy@gmail.com>
Co-authored-by: Fernando Galandrini <fernando.galandrini@unity3d.com>
Co-authored-by: Simon Lemay <simon.lemay@unity3d.com>
Co-authored-by: thoward-unity <87874023+thoward-unity@users.noreply.github.com>
Co-authored-by: Cosmin <cosmin.bararu@unity3d.com>

.github/CODEOWNERS

@@ -4,5 +4,5 @@
 Profiling/ @Unity-Technologies/multiplayer-tools
 /com.unity.netcode.gameobjects/Runtime/Transports/ @Unity-Technologies/server-team
 /com.unity.netcode.gameobjects/Runtime/SceneManagement/ @NoelStephensUnity
-/com.unity.multiplayer.transport.utp/ @Unity-Technologies/server-team
+/com.unity.netcode.adapter.utp/ @Unity-Technologies/server-team
 Documentation~/ @Briancoughlin

.yamato/project.metafile

@@ -26,8 +26,8 @@ projects:
     packages:
       - name: com.unity.netcode.gameobjects
         path: com.unity.netcode.gameobjects
-      - name: com.unity.multiplayer.transport.utp
-        path: com.unity.multiplayer.transport.utp
+      - name: com.unity.netcode.adapter.utp
+        path: com.unity.netcode.adapter.utp
     test_editors:
       - 2021.1
       - 2021.2

README.md

@@ -30,9 +30,9 @@ We follow the [Gitflow Workflow](https://www.atlassian.com/git/tutorials/compari
 This repository is broken into multiple components, each one implemented as a Unity Package.
 ```
     .
-    ├── com.unity.multiplayer.mlapi            # The core netcode SDK unity package (source + tests)
-    ├── com.unity.multiplayer.transport.utp    # Transport wrapper for com.unity.transport experimental package (not currently supported)
-    └── testproject                            # A Unity project with various test implementations & scenes which exercise the features in the above package(s).
+    ├── com.unity.multiplayer.mlapi             # The core netcode SDK unity package (source + tests)
+    ├── com.unity.netcode.adapter.utp           # Transport wrapper for com.unity.transport experimental package (not currently supported)
+    └── testproject                             # A Unity project with various test implementations & scenes which exercise the features in the above package(s).
 ```
 
 ### Contributing