Add v1.16 beta r1 changes.

miniz_tdef.c

@@ -1074,6 +1074,19 @@ void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h,
   return tdefl_write_image_to_png_file_in_memory_ex(pImage, w, h, num_chans, pLen_out, 6, MZ_FALSE);
 }
 
+// Allocate the tdefl_compressor and tinfl_decompressor structures in C so that
+// non-C language bindings to tdefL_ and tinfl_ API don't need to worry about
+// structure size and allocation mechanism.
+tdefl_compressor *tdefl_compressor_alloc()
+{
+  return (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor));
+}
+
+void tdefl_compressor_free(tdefl_compressor* pComp)
+{
+  MZ_FREE(pComp);
+}
+
 #ifdef _MSC_VER
 #pragma warning (pop)
 #endif