fn collect_data_dirs(home: &Path) -> Vec<PathBuf>
Every <home>/channels/*/versions/*/data and <home>/dev/<branch>[/<sub>]/data (mirrors registry::def_migrate::collect_scan_dbs, returning the data dir).
<home>/channels/*/versions/*/data
<home>/dev/<branch>[/<sub>]/data
registry::def_migrate::collect_scan_dbs