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())`