Add option to remove only binary or whole directory

Currently, `binary-install` assumes that uninstalling should remove the entire directory from the user's machine, however some libraries may have application-specific code in that directory. If that is the case, they may want to give users the choice of whether or not they want to remove application-specific code, or just the binary.

`binary-install` should remove the entire directory by default, but should allow library consumers to toggle the feature where the user is prompted to either remove the entire directory or just the binary.

current code in `uninstall` that should remain the default

```js
if (existsSync(this._getInstallDirectory())) {
rimraf.sync(this.installDirectory);
console.log(
`${this.name ? this.name : "Your package"} has been uninstalled`
);
}
```

if the user passes `option.uninstallPrompt = true`

```
"Would you like to remove all of your data associated with ${this.name}`? (y/n)
```

if y -> use existing default code

if n -> `fs.unlink(this._getBinaryPath())`

アンインストールのエントリーポイントから開始し、_getInstallDirectory()、installDirectory、_getBinaryPath() 周辺にある既存のチェックを確認します。現在のディレクトリ全体の削除をデフォルトとして維持し、そのうえで option.uninstallPrompt が選択を制御し、拒否した場合はバイナリのみが削除されることを確認します。

索引モデルが issue の本文から書いたものです。