Update asmdef files to work with changes to assembly definition files wrt unsafe code

ScriptableRenderPipeline/Core/CoreRP/Editor/com.unity.render-pipelines.core.Editor.asmdef

 {
     "name": "com.unity.render-pipelines.core.Editor",
     "references": [
-      "com.unity.render-pipelines.core.Runtime",
-      "com.unity.postprocessing.Runtime",
-      "com.unity.postprocessing.Editor"
+        "com.unity.render-pipelines.core.Runtime",
+        "com.unity.postprocessing.Runtime",
+        "com.unity.postprocessing.Editor"
+    "optionalUnityReferences": [],
-    "excludePlatforms": []
+    "excludePlatforms": [],
+    "allowUnsafeCode": true
 }

ScriptableRenderPipeline/Core/CoreRP/com.unity.render-pipelines.core.Runtime.asmdef

     ],
     "optionalUnityReferences": [],
     "includePlatforms": [],
-    "excludePlatforms": []
+    "excludePlatforms": [],
+    "allowUnsafeCode": true
 }

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Editor/com.unity.render-pipelines.high-definition.Editor.asmdef

 {
     "name": "com.unity.render-pipelines.high-defintion.Editor",
     "references": [
-      "com.unity.render-pipelines.core.Runtime",
-      "com.unity.render-pipelines.core.Editor",
-      "com.unity.render-pipelines.high-definition.Runtime",
-      "com.unity.postprocessing.Runtime",
-      "com.unity.postprocessing.Editor"
+        "com.unity.render-pipelines.core.Runtime",
+        "com.unity.render-pipelines.core.Editor",
+        "com.unity.render-pipelines.high-definition.Runtime",
+        "com.unity.postprocessing.Runtime",
+        "com.unity.postprocessing.Editor"
+    "optionalUnityReferences": [],
-    "excludePlatforms": []
+    "excludePlatforms": [],
+    "allowUnsafeCode": true
 }

ScriptableRenderPipeline/HDRenderPipeline/HDRP/com.unity.render-pipelines.high-definition.Runtime.asmdef

 {
     "name": "com.unity.render-pipelines.high-definition.Runtime",
     "references": [
-      "com.unity.render-pipelines.core.Runtime",
-      "com.unity.postprocessing.Runtime"
+        "com.unity.render-pipelines.core.Runtime",
+        "com.unity.postprocessing.Runtime"
+    "optionalUnityReferences": [],
-    "excludePlatforms": []
+    "excludePlatforms": [],
+    "allowUnsafeCode": true
 }

ScriptableRenderPipeline/LightweightPipeline/LWRP/Editor/com.unity.render-pipelines.lightweight.Editor.asmdef

 {
     "name": "com.unity.render-pipelines.lightweight.Editor",
     "references": [
-      "com.unity.render-pipelines.core.Runtime",
-      "com.unity.render-pipelines.core.Editor",
-      "com.unity.render-pipelines.lightweight.Runtime",
-      "com.unity.postprocessing.Runtime",
-      "com.unity.postprocessing.Editor"
+        "com.unity.render-pipelines.core.Runtime",
+        "com.unity.render-pipelines.core.Editor",
+        "com.unity.render-pipelines.lightweight.Runtime",
+        "com.unity.postprocessing.Runtime",
+        "com.unity.postprocessing.Editor"
+    "optionalUnityReferences": [],
-    "excludePlatforms": []
+    "excludePlatforms": [],
+    "allowUnsafeCode": true
 }

ScriptableRenderPipeline/LightweightPipeline/LWRP/com.unity.render-pipelines.lightweight.Runtime.asmdef

 {
     "name": "com.unity.render-pipelines.lightweight.Runtime",
     "references": [
-      "com.unity.render-pipelines.core.Runtime",
-      "com.unity.postprocessing.Runtime"
+        "com.unity.render-pipelines.core.Runtime",
+        "com.unity.postprocessing.Runtime"
+    "optionalUnityReferences": [],
-    "excludePlatforms": []
+    "excludePlatforms": [],
+    "allowUnsafeCode": true
 }