Proposal: <Redirect /> and hooks for yew-router

[futursolo]

This is created as an issue as per suggestion by @mc1098 in #2107.
Feel free to move this to discussion if not appropriate.

This issue proposes the following changes to yew-router:

• Add a <Redirect<R> to={route} /> component to yew-router that mirrors react-router's <Redirect /> component.
• Rename prop route to to for <Link /> so it is consistent with <Redirect />.
• Make <Router /> a context provider
• Add Location and History that mirrors the behaviour of history package on npm.
• Introduce use_history, use_location and use_route hook.
• Introduce a RouterScopeExt that provides history location and route methods on ctx.link().

I have a custom fork that have some of the changes implemented but that branch also contains changes proposed in #2107.
I will file a PR for this issue after #2107 is settled.