[config] Add HB_NO_OT_SHAPE / HB_NO_OT

Part of https://github.com/harfbuzz/harfbuzz/issues/1652

src/hb-ot-shape-complex-default.cc

diff --git a/src/hb-ot-shape-complex-default.cc b/src/hb-ot-shape-complex-default.cc
index 97923ec..a921f16 100644
--- a/src/hb-ot-shape-complex-default.cc
+++ b/src/hb-ot-shape-complex-default.cc
@@ -24,6 +24,10 @@
  * Google Author(s): Behdad Esfahbod
  */
 
+#include "hb.hh"
+
+#ifndef HB_NO_OT_SHAPE
+
 #include "hb-ot-shape-complex.hh"
 
 
@@ -44,3 +48,6 @@
   HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE,
   true, /* fallback_position */
 };
+
+
+#endif