Vue-carousel: Feature Request: Add support for TypeScript

[Tomson124]

Is your feature request related to a problem?
Using the plugin out of the box with a TypeScript powered Vue.js project is not possible, as the type decleration is missing.

Describe the solution you'd like
Adding typescript type declerations by default.

If any, describe the alternatives you've considered
Sure you can do this on your own by augmenting, but the easier approach for the user of the plugin would be those already being declared.

[quinnlangille]

Hey @Tomson124, we don't have any near future plans to enabled typescript support. However, I'll leave this open as a feature request incase anyone wants to contribute! :octocat:

[Tomson124]

I will look if I have time to contribute it. Was just wondering if it would be "necessary" as I read lately that Vue will get a complete rewrite for 3.0 in TypeScript.