Initialiaze na3x
    :param cfg: db, triggers, environment variables configuration

def init(cfg):
    """
    Initialiaze na3x
    :param cfg: db, triggers, environment variables configuration
    """
    global na3x_cfg
    with open(cfg[NA3X_DB]) as db_cfg_file:
        na3x_cfg[NA3X_DB] = json.load(db_cfg_file, strict=False)
    with open(cfg[NA3X_TRIGGERS]) as triggers_cfg_file:
        na3x_cfg[NA3X_TRIGGERS] = json.load(triggers_cfg_file, strict=False)
    with open(cfg[NA3X_ENV]) as env_cfg_file:
        na3x_cfg[NA3X_ENV] = json.load(env_cfg_file, strict=False)