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/goctl.go

@@ -23,12 +23,18 @@ import (
 	"github.com/tal-tech/go-zero/tools/goctl/plugin"
 	rpc "github.com/tal-tech/go-zero/tools/goctl/rpc/cli"
 	"github.com/tal-tech/go-zero/tools/goctl/tpl"
+	"github.com/tal-tech/go-zero/tools/goctl/upgrade"
 	"github.com/urfave/cli"
 )
 
 var (
 	BuildVersion = "1.1.3"
 	commands     = []cli.Command{
+		{
+			Name:   "upgrade",
+			Usage:  "upgrade goctl to latest version",
+			Action: upgrade.Upgrade,
+		},
 		{
 			Name:  "api",
 			Usage: "generate api related files",