Adds Windows resource limits support

This will allow running Windows Containers to have their resource
limits updated through containerd. The CPU resource limits support
has been added for Windows Server 20H2 and newer, on older versions
hcsshim will raise an Unimplemented error.

Signed-off-by: Claudiu Belu <cbelu@cloudbasesolutions.com>

integration/container_update_resources_test.go

@@ -67,7 +67,7 @@ func TestUpdateContainerResources(t *testing.T) {
 	t.Log("Update container memory limit after created")
 	err = runtimeService.UpdateContainerResources(cn, &runtime.LinuxContainerResources{
 		MemoryLimitInBytes: 400 * 1024 * 1024,
-	})
+	}, nil)
 	require.NoError(t, err)
 
 	t.Log("Check memory limit in container OCI spec")
@@ -90,7 +90,7 @@ func TestUpdateContainerResources(t *testing.T) {
 	t.Log("Update container memory limit after started")
 	err = runtimeService.UpdateContainerResources(cn, &runtime.LinuxContainerResources{
 		MemoryLimitInBytes: 800 * 1024 * 1024,
-	})
+	}, nil)
 	require.NoError(t, err)
 
 	t.Log("Check memory limit in container OCI spec")