✨ feat: support other OpenAI APIs (#165)

* ✨ feat: support other OpenAI APIs

* 🔖 chore: Update English translation

providers/base/common.go

@@ -143,3 +143,7 @@ func (p *BaseProvider) GetSupportedAPIUri(relayMode int) (url string, err *types
 
 	return
 }
+
+func (p *BaseProvider) GetRequester() *requester.HTTPRequester {
+	return p.Requester
+}

providers/base/interface.go

@@ -20,7 +20,7 @@ type ProviderInterface interface {
 	// 获取完整请求URL
 	// GetFullRequestURL(requestURL string, modelName string) string
 	// 获取请求头
-	// GetRequestHeaders() (headers map[string]string)
+	GetRequestHeaders() map[string]string
 	// 获取用量
 	GetUsage() *types.Usage
 	// 设置用量
@@ -35,6 +35,7 @@ type ProviderInterface interface {
 	// SupportAPI(relayMode int) bool
 	GetChannel() *model.Channel
 	ModelMappingHandler(modelName string) (string, error)
+	GetRequester() *requester.HTTPRequester
 }
 
 // 完成接口