New Component: (Global) Progess Bar

[themodernpk]

The number of times it's really useful to have a global progress bar, similar to

https://hilongjw.github.io/vue-progressbar/index.html

I am recommending it because I trust Oruga, more than any other library.

It will be a great addition

[mouadTaoussi]

@jtommy You can assign me to this Feature!