Work-around dotnet bug

The include must be duplicated because the root `buildOptions` is not
being applied "whenever compiling the project."

src/Microsoft.PowerShell.Security/project.json

@@ -5,10 +5,7 @@
 
     "buildOptions": {
         "warningsAsErrors": true,
-        "allowUnsafe": true,
-        "compile": {
-            "include": [ "../windows-build/gen/Microsoft.PowerShell.Security/*.cs" ]
-        }
+        "allowUnsafe": true
     },
 
     "dependencies": {
@@ -21,6 +18,7 @@
             "buildOptions": {
                 "define": [ "CORECLR" ],
                 "compile": {
+                    "include": [ "../windows-build/gen/Microsoft.PowerShell.Security/*.cs" ],
                     "exclude": [
                         "security/CertificateCommands.cs",
                         "security/CmsCommands.cs",
@@ -30,6 +28,11 @@
             }
         },
         "net451": {
+            "buildOptions": {
+                "compile": {
+                    "include": [ "../windows-build/gen/Microsoft.PowerShell.Security/*.cs" ]
+                }
+            }
         }
     }
 }