An option to skip writing timestamps?

[fedulovivan]

Hello. I'm using this logger inside docker container, so the timestamp/ts column is redundant. The only way I've found, is overriding formatEntry function like folows:

import SimpleNodeLogger from 'simple-node-logger';
const log = SimpleNodeLogger.createSimpleLogger({ level: 'debug' });
const appenders = log.getAppenders();
appenders[0].formatEntry = function(entry) {
    return [
        this.formatLevel(entry.level),
        this.formatMessage(entry.msg)
    ];
};
export default log;

So would be nice to have some configuration option for such usecase.