Add support for `Record<,>`

[jeremyVignelles]

Currently, you can't type a property as Record<string, string> :

Generics are not yet supported by ts-interface-builder: Record<string, string>

However, this seems to work: { [key: string] : string; }

Would it be possible to add support for Record<TKey, TValue> as an alias for { [key: TKey] : TValue } ?