feat: Make autoUpdate and autoLaunch features configurable in MakerWixConfig (#2620)

- Added 'features' property to `MakerWixConfig` to enable configuration of `autoUpdate` and `autoLaunch` features
     - (see definition [here](https://github.com/felixrieseberg/electron-wix-msi/blob/master/src/creator.ts#L85))
- These features can then be configured by adding `features` to `@electron-forge/maker-wix`'s `config` in `forge.config.js`
Example:
```javascript
{ features: { autoUpdate: true, autoLaunch: false } }
```

packages/maker/wix/src/Config.ts

@@ -1,4 +1,4 @@
-import { MSICreator } from 'electron-wix-msi/lib/creator';
+import { MSICreator, Features } from 'electron-wix-msi/lib/creator';
 
 export interface MakerWixConfig {
   /**
@@ -70,6 +70,11 @@ export interface MakerWixConfig {
    * The password to decrypt the certificate given in `certificateFile`.
    */
   certificatePassword?: string;
+  /**
+   * Enables configuration of the autoUpdate and autoLaunch features.
+   * By default, they are disabled.
+   */
+  features?: Features | false;
   /**
    * Allows for the modification of the MSICreator before create is called.
    */