Function nflz::can_rename_all

pub fn can_rename_all(
    dir: &Path, 
    rn_map: &BTreeMap<ParsedFilename, String>, 
    pf_list: &Vec<ParsedFilename>
) -> Result<(), NFLZError>

Verifies that all files can be renamed without conflict.

• dir Directory where all replacements happen. Needed to make some checks before the actual renaming starts.
• rn_map Map with the mappings from old to new names.
• pf_list List with parsed filenames. Needed to make some checks before the actual renaming starts.