Windows: Adds HCS Calls and Bug Fixes

Move the windows plugin to use the Host Compute (v2) APIs, as well
as clean-up the code. Allows win-bridge to use either the old API or Host Compute (v2) api
depending on a conf parameter. Fixes a leaked endpoint issue on windows for the v1 flow, and
removes the hns/pkg from the linux test run.

pkg/hns/hns_suite_windows_test.go

@@ -0,0 +1,13 @@
+package hns_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestHns(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Hns Suite")
+}