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Automatic merge from submit-queue (batch tested with PRs 42200, 39535, 41708, 41487, 41335) Update kube-proxy support for Windows **What this PR does / why we need it**: The kube-proxy is built upon the sophisticated iptables NAT rules. Windows does not have an equivalent capability. This introduces a change to the architecture of the user space mode of the Windows version of kube-proxy to match the capabilities of Windows. The proxy is organized around service ports and portals. For each service a service port is created and then a portal, or iptables NAT rule, is opened for each service ip, external ip, node port, and ingress ip. This PR merges the service port and portal into a single concept of a "ServicePortPortal" where there is one connection opened for each of service IP, external ip, node port, and ingress IP. This PR only affects the Windows kube-proxy. It is important for the Windows kube-proxy because it removes the limited portproxy rule and RRAS service and enables full tcp/udp capability to services. **Special notes for your reviewer**: **Release note**: ``` Add tcp/udp userspace proxy support for Windows. ```