feat: file mame device sets by their machines

The -listxml names, for every machine, its parent (romof), the devices of its default configuration (device_ref) and the cards its slots offer (slotoption). A machine takes the system of the first set on its romof chain a written entry lists, and passes it to each device it can instantiate. A device set reached from one system gets system:, from several the new per-entry systems:, from none neither, and keeps serving every system of the profile. The gap report, the core extras and slots read the entry's own systems, so generate_pack --system and the installer pick by them.

scripts/slots.py

@@ -26,6 +26,7 @@ from common import (
     archive_entry,
     build_zip_contents_index,
     check_inside_zip,
+    entry_system_ids,
     holds_required_members,
     load_data_dir_registry,
     parse_md5_list,
@@ -234,7 +235,12 @@ def profile_claims(
                     full = f"{base_dest}/{dest}" if base_dest else dest
                 else:
                     placed = placement.place(
-                        {"profile": emu_name, "system": entry.get("system")}, dest
+                        {
+                            "profile": emu_name,
+                            "system": entry.get("system"),
+                            "systems": entry_system_ids(entry, profile),
+                        },
+                        dest,
                     )
                     if placed is None:
                         continue