fix up diff from benchmarks, and add tests against ziglyph

src/build/uucode_config.zig

@@ -65,7 +65,7 @@ pub const tables = [_]config.Table{
         .fields = &.{
             d.field("is_emoji_presentation"),
             d.field("case_folding_full"),
-            // Alternative:
+            // TODO: Alternatively, use:
             // d.field("case_folding_simple"),
             d.field("is_emoji_modifier"),
             d.field("is_emoji_modifier_base"),