Feature Request: Support multiple paths for (custom) icons.

Describe the problem you'd like to see solved or task you'd like to see made easier

I am looking to use the fa-icon system to store my own SVG's as font awesome icons, these SVG's are multi-colored and thus have multiple paths, it'd be nice to be able to support multiple paths.

Is this in relation to an existing part of angular-fontawesome or something new?

I believe it would be super beneficial to support this behavior to support multi-colored icons.

What is 1 thing that we can do when building this feature that will guarantee that it is awesome?

It would allow multi-colored icons to be used by the community as well as provide a solid foundation for potential future icon packs to leverage the item system.

Why would other angular-fontawesome users care about this?

I believe the SVG icon approach is much more useful than having to reference/embed icons manually or maintain a separate set of components for the icons themselves.

On a scale of 1 (sometime in the future) to 10 (absolutely right now), how soon would you recommend we make this feature?

5 - I think it'd be super awesome but i understand that the uses within the community at this time are limited.

Feature request checklist

[X] This is a single feature (i.e. not a re-write of all of Font Awesome)
[X] The title starts with "Feature request: " and is followed by a clear feature name (Ex: Feature request: moar cowbell)
[X] I have searched for existing issues and to the best of my knowledge this is not a duplicate

FortAwesome / angular-fontawesome