Add shuffle slice utility

[lil5]

Is your feature request related to a problem? Please describe.
I'm trying to fake a randomized array of unique enums

Describe the solution you'd like
To include shuffleSlice as Faker.ShuffleSlice

func ShuffleSlice[T any](slice []T) []T {
	rand.Shuffle(len(slice), func(i, j int) {
		slice[i], slice[j] = slice[j], slice[i]
	})

	return slice
}

go playground example
https://play.golang.com/p/1rQ2O-0aNOx

[jaswdr]

Hello @lil5, unfortunately it is not possible to use Generics because we still support versions <= 1.18. I'll add this issue to our go1.18 migration plan. I'll include this idea when we bump our Go version.