Rework of SimulationConfig to load JSON from StreamingAssets\Configs

Packages/manifest.json

@@ -3,6 +3,7 @@
     "com.unity.collab-proxy": "2.5.1",
     "com.unity.feature.development": "1.0.1",
     "com.unity.ide.cursor": "https://github.com/boxqkrtm/com.unity.ide.cursor.git",
+    "com.unity.nuget.newtonsoft-json": "3.2.1",
     "com.unity.render-pipelines.universal": "14.0.11",
     "com.unity.textmeshpro": "3.0.6",
     "com.unity.timeline": "1.7.6",

Packages/packages-lock.json

@@ -86,6 +86,13 @@
       "dependencies": {},
       "url": "https://packages.unity.com"
     },
+    "com.unity.nuget.newtonsoft-json": {
+      "version": "3.2.1",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {},
+      "url": "https://packages.unity.com"
+    },
     "com.unity.performance.profile-analyzer": {
       "version": "1.2.2",
       "depth": 1,