new features
- enhance `gita clone` command 202
- add `-g <group-name>` option to add the URL repo after clone, and also add to a group 258
- enable customization of status symbols 223
- remove `spaceship_status` info item in favor of custom status symbols 257
breaking changes
- any existing color customization file (say `~/.config/gita/color.csv`) needs to be updated: any `-` should be `_` 256
- replace `spaceship_status` info item by `branch` in the customization file (say `~/.config/gita/info.csv`) 257