feat: allow to specify options for sauce-connect

Added the ability to pass custom options to the connect launcher.

Example:
```js
sauceLabs: {
  startConnect: true,
  testName: 'Travis',
  connectOptions: {
    directDomains: ['*.icloud.com', '*.apple.com', '*.disney.com', '*.go.com']
  }
}
```

I also removed some config values as they are not used (no_progress), already the default (verbose) or ignored (logfile)