feat: routing v2

[TorstenDittmann]

What changed:

• Added Router class, that uses key lookups in a key
• Removed lots of unused code in utopia that was needed for route matching before
• Added tests

Route Matching:

Each route is saved and each :param is replaced with a placeholder of :::

'/' => '/',
'/blog' => '/blog,
'/blog/authors' => '/blog/authors',
'/blog/categories' => '/blog/categories',
'/blog/:blogId' => '/blog/:::'
'/blog/:blogId/comments/add' => /blog/:blogId/comments/add'
'/blog/:blogId/comments/:commentId' => '/blog/:blogId/comments/:::'
}

Additionally, each index of params splitting by / is saved for performance, so 1 and 3 in this case for :blogId and :commentId.

Based on the path segments, the Router creates following strings when looking for /blog/lorem-ipsum/comments/532:

[
    '/blog/lorem-ipsum/comments/532',
    '/blog/:::/comments/532',
    '/blog/lorem-ipsum/comments/:::'
    '/blog/:::/comments/:::'
]

And can find the URL in a maximum of 4 key lookups.

[eldadfux]

I don't see any support for alias routes like we used to have, what is our approach for that now?