router: add scheme and port redirect actions (#3060) (#4570)
router: add scheme and port redirect actions (#3060) (#4570)

Add scheme and port redirects which replace the respective
URI components when applied.

Fixes issue #3060.

Signed-off-by: Nikolay Nikolaev <nnikolay@vmware.com>

Mirrored from https://github.com/envoyproxy/envoy @ 057edf16474df8f1ed834dbfa8ceefb45613b3a4

lyft/envoy-api,lyft/envoy-api,lyft/envoy-api