Closes#43
FBNeo and Kronos expect BIOS archives in core-specific subdirectories
(system/fbneo/, system/kronos/). RetroArch firmware check uses .info
paths which include these prefixes, so files at root show as Missing.
Add archive_prefix field to emulator profiles. The pack code now places
archive copies in the prefixed subdirectory while keeping root copies
for cores that expect them there (e.g. Geolith for neogeo.zip).
Add support for Coleco Adam, Entex Adventure Vision and APF M-1000 BIOS/ROM sets in MAME and MESS metadata (multiple Adam device MCU ROMs and optional FDC/SPI variants, Advision and APF BIOS entries). Update generated metadata across the repo: README coverage numbers and per-platform coverage rows, database generated timestamp and totals (total_files 7245), and various install manifests (notably batocera.json) with new timestamps, adjusted file counts/sizes, SHA1s, repo_path fixes and an added adam_fdc_320kb.zip entry. Also update notes to reflect the new system ROM sets in the emulators entries.
