* fixed: __init__/__init__.sh, bash/tacklelib/tools/load_config*.sh: execution fixup
* new: bash/tacklelib/tools/load_config_dir.sh: `--expand-*-config-*-vars` and `--expand-all-configs-*-vars` flags
* new: __init__/canonical_path_if_ndef.bat: `canonical_path.bat` script variant
* changed: __init__/canonical_path.bat: added parameters checks
* changed: __init__: minor improvements
* changed: TODO.txt: todo update