http api method 목록 리턴하는 함수 추가

server.go

@@ -826,6 +826,14 @@ func (hc *HttpApiBroker) AddHandler(receiver HttpApiHandler) {
 	}
 }
 
+func (hc *HttpApiBroker) AllMethods() (out []string) {
+	out = make([]string, 0, len(hc.methods))
+	for name := range hc.methods {
+		out = append(out, name)
+	}
+	return
+}
+
 func (hc *HttpApiBroker) CallByHeader(w http.ResponseWriter, r *http.Request) {
 	funcname := r.Header.Get("AS-X-CALL")
 	if len(funcname) == 0 {