feature: refactor api parse to g4 (#365)

* feature: refactor api parse to g4

* new g4 parser

* add CHANGE_LOG.MD

* refactor

* fix byte bug

* refactor

* optimized

* optimized

* revert

* update readme.md

* update readme.md

* update readme.md

* update readme.md

* remove no need

* fix java gen

* add upgrade

* resolve confilits

Co-authored-by: anqiansong <anqiansong@xiaoheiban.cn>

tools/goctl/api/apigen/gen.go

@@ -12,18 +12,21 @@ import (
 	"github.com/urfave/cli"
 )
 
-const apiTemplate = `info(
+const apiTemplate = `
+syntax = "v1"
+
+info(
 	title: // TODO: add title
 	desc: // TODO: add description
 	author: "{{.gitUser}}"
 	email: "{{.gitEmail}}"
 )
 
-type request struct {
+type request {
 	// TODO: add members here and delete this comment
 }
 
-type response struct {
+type response {
 	// TODO: add members here and delete this comment
 }