Refactor code generating with `embed` + `template` (#7)

Perf: how `gs-cli run watch` detect code modifications
Feat: customize `gs-cli run XXX` by add map like `"version": ["gs-cli", "--version"]` into `app.scripts` in `gs.json`

upgrade `gs` to `v1.2.3` (#6)

v1.2.2 Victory Knight (#5)

1. upgrade gin-stronger to v1.2.2
2. new command gs-cli add
3. new commannd gs-cli run build/dev/watch

update `gs` to `v1.2.0` (#3)

* use project name as main file name

* update `gs` to `v1.2.0`

update `gs` to `v1.1.2` (#2)

v1.1.1 Ginga Strium (#1)