Ability to configure URI Compliance mode

See https://eclipse.dev/jetty/documentation/jetty-12/programming-guide/index.html#pg-server-compliance-uri

I'm running into an issue where URL's that worked in Jetty 9.x before, no longer work on Jetty 12.x (with Servlet API 6).

It turns out that this behavior has changed in Jetty, and is configurable.

When using LEGACY or UNSAFE, a workaround is needed to let Jetty handle the urls properly, besides setting the URI compliance mode.

See https://github.com/jetty/jetty.project/issues/11448#issuecomment-1969206031 for more information.

I will put in a PR to get this configurable in Felix HTTP Jetty12.

Example URL that no longer works:

https://domain.net/rest/v2/exampleEndpoint/76ffc12c-7d8b-433f-b95d-8ced9415a598/items/item_0_http%253A%252F%252Fwww.test.com%252F0.html