refactor(netx): move tlshandshaker logger to netxlite (#402)

Part of https://github.com/ooni/probe/issues/1505

internal/netxmocks/tlshandshaker_test.go

@@ -0,0 +1,33 @@
+package netxmocks
+
+import (
+	"context"
+	"crypto/tls"
+	"errors"
+	"net"
+	"reflect"
+	"testing"
+)
+
+func TestTLSHandshakerHandshake(t *testing.T) {
+	expected := errors.New("mocked error")
+	conn := &Conn{}
+	ctx := context.Background()
+	config := &tls.Config{}
+	th := &TLSHandshaker{
+		MockHandshake: func(ctx context.Context, conn net.Conn,
+			config *tls.Config) (net.Conn, tls.ConnectionState, error) {
+			return nil, tls.ConnectionState{}, expected
+		},
+	}
+	tlsConn, connState, err := th.Handshake(ctx, conn, config)
+	if !errors.Is(err, expected) {
+		t.Fatal("not the error we expected", err)
+	}
+	if !reflect.ValueOf(connState).IsZero() {
+		t.Fatal("expected zero ConnectionState here")
+	}
+	if tlsConn != nil {
+		t.Fatal("expected nil conn here")
+	}
+}