gozero template (#147)

* model/rpc generate code from template cache

* delete unused(deprecated) code

* support template init|update|clean|revert

* model: return the execute result for insert and update operation

* // deprecated: containsAny

* add template test

* add default buildVersion

* update build version

tools/goctl/model/sql/template/import.go

@@ -15,6 +15,7 @@ var (
 )
 `
 	ImportsNoCache = `import (
+	"database/sql"
 	"strings"
 	{{if .time}}"time"{{end}}