bullet by slide and breakpoints

[luger95]

Currently bullets are based solely on the number of slides. But if we use slide and breackpoints the bullet should take into consideration the two parameters.

Exemple : `<vue-glide type="slider" :breakpoints="{ 600: { perView: 1 }, }," :rewind="false" :gap="10" :bullet="true" :per-view="2"

`

With this example, logically, the number of bullet should be two, not three.