feat: support for typescript named routes

[pikax]

WIP to support typescript named routes

## Limitations
ExtractNamedRoutes needs all the routes to have children:[] declare if one has children.
All the routes must have name

Close #1160

[pikax]

Should we also get the routes from the router?

The issue would be:

• We only have access to the routes with that specific instance
• We would need to declare/override the default "RouterOptions"
• How will it integrate with NamedLocationMap, should we merge both? I see NamedLocationMap to be used as the helper to define routes at runtime.
• How can we declare the params type?

[sapphi-red]

https://vue-routider.sapphi.red/

I made a wrapper library which strictly types vue-router before.
I am not sure whether it is worth reading but I hope this helps you.

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