Add Matchit support for Vue.js files

[DanEEStar]

Rebased the changes from #421 to master.

This feature adds support for single file Vue components which have its own .vue-extension and are a "mixture" of a HTML-Template, JavaScript- and CSS-code. (A bit similar to JSX-files...)
With this added "Vue.js" fileType they work now as expected.

[AlexPl292]

Hi, thank you for your contribution!
Do you mean that IJ returns a special vue.js value in virtualFile?.fileType?.name for vue.js file? And not JavaScript?

[DanEEStar]

Do you mean that IJ returns a special vue.js value in virtualFile?.fileType?.name for vue.js file? And not JavaScript?

Yes, exactly that! virtualFile?.fileType?.name will have the value "Vue.js" for *.vue vue-component files.
I checked that with some added logging in a custom build of the IdeaVim plugin.

Vue Single File Components do also contain HTML-code. With this added "Vue.js" value in htmlLikeFileTypes matchit also works in them! (At least in my custom build, not in the current IdeaVim version... 😄)

[AlexPl292]

Oh, I see now. Okay, great, let's merge it :)

[DanEEStar]

👍 Thanks for your great work with IdeaVim!