Add packages present in new unity project (#7)

Author: mattyoung-improbable

workers/unity/Packages/manifest.json

@@ -7,8 +7,41 @@
     "com.improbable.gdk.testutils": "file:../../../../gdk-for-unity/workers/unity/Packages/com.improbable.gdk.testutils",
     "com.improbable.gdk.tools": "file:../../../../gdk-for-unity/workers/unity/Packages/com.improbable.gdk.tools",
     "com.improbable.gdk.transformsynchronization": "file:../../../../gdk-for-unity/workers/unity/Packages/com.improbable.gdk.transformsynchronization",
+    "com.unity.ads": "2.0.8",
+    "com.unity.analytics": "2.0.16",
     "com.unity.package-manager-ui": "1.9.11",
-    "com.unity.modules.physics": "1.0.0"
+    "com.unity.purchasing": "2.0.3",
+    "com.unity.textmeshpro": "1.2.4",
+    "com.unity.modules.ai": "1.0.0",
+    "com.unity.modules.animation": "1.0.0",
+    "com.unity.modules.assetbundle": "1.0.0",
+    "com.unity.modules.audio": "1.0.0",
+    "com.unity.modules.cloth": "1.0.0",
+    "com.unity.modules.director": "1.0.0",
+    "com.unity.modules.imageconversion": "1.0.0",
+    "com.unity.modules.imgui": "1.0.0",
+    "com.unity.modules.jsonserialize": "1.0.0",
+    "com.unity.modules.particlesystem": "1.0.0",
+    "com.unity.modules.physics": "1.0.0",
+    "com.unity.modules.physics2d": "1.0.0",
+    "com.unity.modules.screencapture": "1.0.0",
+    "com.unity.modules.terrain": "1.0.0",
+    "com.unity.modules.terrainphysics": "1.0.0",
+    "com.unity.modules.tilemap": "1.0.0",
+    "com.unity.modules.ui": "1.0.0",
+    "com.unity.modules.uielements": "1.0.0",
+    "com.unity.modules.umbra": "1.0.0",
+    "com.unity.modules.unityanalytics": "1.0.0",
+    "com.unity.modules.unitywebrequest": "1.0.0",
+    "com.unity.modules.unitywebrequestassetbundle": "1.0.0",
+    "com.unity.modules.unitywebrequestaudio": "1.0.0",
+    "com.unity.modules.unitywebrequesttexture": "1.0.0",
+    "com.unity.modules.unitywebrequestwww": "1.0.0",
+    "com.unity.modules.vehicles": "1.0.0",
+    "com.unity.modules.video": "1.0.0",
+    "com.unity.modules.vr": "1.0.0",
+    "com.unity.modules.wind": "1.0.0",
+    "com.unity.modules.xr": "1.0.0"
   },
   "registry": "https://staging-packages.unity.com"
 }