Rule Request: Opposite of SwitchCaseAlignmentRule

[Noobish1]

New Issue Checklist

• Updated SwiftLint to the latest version
• I searched for existing GitHub issues

Rule Request

1. Why should this rule be added?

In my codebase (and others i've worked on) I like switch cases to be indented one level extra than the switch itself (i've known others to do the same also), e.g:

switch enumThing {
    case firstCase:
        // do stuff
    default:
        // do stuff
}

This could be implemented as a separate opt-in rule or as a configuration option on the existing SwitchCaseAlignmentRule.

[freak4pc]

Have been looking for a similar rule as well, might take a crack at it

[freak4pc]

@Noobish1 Added a quick PR mentioned here. Check it out and let me know what you think.