Include the metadata headers in the generated SWIG bindings (#2069)

This allows access to functions that indicate what object type an OID
represents as well as metadata of an attribute.

Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>

meta/parse.pl

@@ -5498,13 +5498,22 @@ sub CreateSaiSwigApiStructs
     }
 
     my @headers = GetHeaderFiles();
+    my @metaheaders = GetMetaHeaderFiles();
     my @exheaders = GetExperimentalHeaderFiles();
 
-    my @merged = (@headers, @exheaders);
+    push(@metaheaders, "saimetadata.h");
+
+    my @merged = (@headers, @metaheaders, @exheaders);
+
+    WriteSwig "%ignore sai_metadata_log;";
+    WriteSwig "%ignore sai_metadata_log_level;";
+    WriteSwig "%ignore sai_free_attribute;";
 
     for my $header (sort @merged)
     {
+        WriteSwig "%nodefaultctor;" if $header =~ /saimetadatatypes\.h/;
         WriteSwig "%include \"$header\"";
+        WriteSwig "%clearnodefaultctor;" if $header =~ /saimetadatatypes\.h/;
     }
 }