Read config file

    :param FILE: Absolute path to config file (incl. filename)
    :type FILE: str

def init(FILE):
    """
    Read config file

    :param FILE: Absolute path to config file (incl. filename)
    :type FILE: str
    """
    try:
        cfg.read(FILE)
        global _loaded
        _loaded = True
    except:
        file_not_found_message(FILE)