Implement str/bytes rich comparisons.
diff --git a/py/obj.h b/py/obj.h
index bed5103..ca3ab1a 100644
--- a/py/obj.h
+++ b/py/obj.h
@@ -397,3 +397,4 @@
 void mp_seq_multiply(const void *items, uint item_sz, uint len, uint times, void *dest);
 bool m_seq_get_fast_slice_indexes(machine_uint_t len, mp_obj_t slice, machine_uint_t *begin, machine_uint_t *end);
 #define m_seq_copy(dest, src, len, item_sz) memcpy(dest, src, len * sizeof(item_sz))
+bool mp_seq_cmp_bytes(int op, const byte *data1, uint len1, const byte *data2, uint len2);