dhcp: add dhcp scope stats (#1840)

Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>

internal/headers/dhcpsapi/dhcpsapi_test.go

@@ -0,0 +1,24 @@
+package dhcpsapi
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"golang.org/x/sys/windows"
+)
+
+func TestGetDHCPV4ScopeStatistics(t *testing.T) {
+	t.Parallel()
+
+	if procDhcpGetSuperScopeInfoV4.Find() != nil {
+		t.Skip("DhcpGetSuperScopeInfoV4 is not available")
+	}
+
+	_, err := GetDHCPV4ScopeStatistics()
+	if errors.Is(err, windows.Errno(1753)) {
+		t.Skip(err.Error())
+	}
+
+	require.NoError(t, err)
+}