fix(change model template file type): All model template variables ar… (#2573)

* fix(change model template file type): All model template variables are stored in tpl format files with the same name as the template generated using the template init command

* fix(change model template file type): All model template variables are stored in tpl format files with the same name as the template generated using the template init command

Co-authored-by: qilvge <qilvge@.qilvge.com>
Co-authored-by: Kevin Wan <wanjunfeng@gmail.com>

tools/goctl/model/sql/template/tpl/model-new.tpl

@@ -0,0 +1,6 @@
+func new{{.upperStartCamelObject}}Model(conn sqlx.SqlConn{{if .withCache}}, c cache.CacheConf{{end}}) *default{{.upperStartCamelObject}}Model {
+	return &default{{.upperStartCamelObject}}Model{
+		{{if .withCache}}CachedConn: sqlc.NewConn(conn, c){{else}}conn:conn{{end}},
+		table:      {{.table}},
+	}
+}