Added TODO comments to TBD entries in nativecall.pod

Author: dha

lib/Language/nativecall.pod

@@ -266,10 +266,14 @@ instead:
 
 =head1 Typed Pointers
 
+=comment TODO
+
 TBD
 
 =head1 Buffers and Blobs
 
+=comment TODO
+
 TBD
 
 =head1 Function arguments
@@ -288,6 +292,8 @@ to callbacks.
 
 =head1 Library Paths and Names
 
+=comment TODO
+
 TBD
 
 =head1 Exported variables