Redirects should (optionally?) take precedence over existing pages

[lorenzulrich]

Currently, redirects are a possible fallback if a page matching the path was not found.

By Neos defaults, redirects are executed before normal routing which seems more logical.

We came across this because of the following problem:

• We use a URI segment for the language, so we have a page /de/verband displaying the German page called Verband on root level
• We want to create a redirect from /verband (without language segment) to /de/verband/.
• However, since the page with path /verband exists (from the perspective of the ContentApi), it takes precedence