Block Attribute Manager window (BATTMAN / ATTMAN)

BATTMAN and ATTMAN open a manager for the attribute definitions of one
attributed block: block chips with reference counts and a pick button,
a table whose columns are chosen with chips, move up/down, remove, and
an edit card (Attribute / Text / Properties) for the selected row. Apply,
OK and Sync write the list back to the block definition and, when asked,
rebuild the existing references keeping values through tag renames;
each is one undo step. Live changes are taken back on Cancel. Automation
gains attman_dialog.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/ui/window/mod.rs

@@ -2,6 +2,7 @@ pub mod about;
 pub mod alias_editor;
 pub mod annotation_data;
 pub mod attdef_dialog;
+pub mod attman_dialog;
 pub mod attribute_editor;
 pub mod auto_constrain_settings;
 pub mod block_definition;