default OverrideSpecifiedNames to false (#7583)

Author: wing328

modules/openapi-generator/src/main/resources/csharp-netcore/ApiClient.mustache

@@ -41,7 +41,7 @@ namespace {{packageName}}.Client
             {
                 NamingStrategy = new CamelCaseNamingStrategy
                 {
-                    OverrideSpecifiedNames = true
+                    OverrideSpecifiedNames = false
                 }
             }
         };
@@ -780,4 +780,4 @@ namespace {{packageName}}.Client
         }
         #endregion ISynchronousClient
     }
-}
+}

samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/ApiClient.cs

@@ -46,7 +46,7 @@ internal class CustomJsonCodec : RestSharp.Serializers.ISerializer, RestSharp.De
             {
                 NamingStrategy = new CamelCaseNamingStrategy
                 {
-                    OverrideSpecifiedNames = true
+                    OverrideSpecifiedNames = false
                 }
             }
         };
@@ -782,4 +782,4 @@ public ApiResponse<T> Patch<T>(string path, RequestOptions options, IReadableCon
         }
         #endregion ISynchronousClient
     }
-}
+}

samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/ApiClient.cs

@@ -47,7 +47,7 @@ internal class CustomJsonCodec : RestSharp.Serializers.ISerializer, RestSharp.De
             {
                 NamingStrategy = new CamelCaseNamingStrategy
                 {
-                    OverrideSpecifiedNames = true
+                    OverrideSpecifiedNames = false
                 }
             }
         };
@@ -783,4 +783,4 @@ public ApiResponse<T> Patch<T>(string path, RequestOptions options, IReadableCon
         }
         #endregion ISynchronousClient
     }
-}
+}