chore: reorganize adaptor related package

relay/adaptor/openai/util.go

@@ -0,0 +1,15 @@
+package openai
+
+import "github.com/songquanpeng/one-api/relay/model"
+
+func ErrorWrapper(err error, code string, statusCode int) *model.ErrorWithStatusCode {
+	Error := model.Error{
+		Message: err.Error(),
+		Type:    "one_api_error",
+		Code:    code,
+	}
+	return &model.ErrorWithStatusCode{
+		Error:      Error,
+		StatusCode: statusCode,
+	}
+}