Listing USS entries does not include timestamp in `lastModified` property

[t1m0thyj]

When I issue the ls command over an FTP terminal session, the Last Modified time is displayed in the format MMM DD hh:mm.

I would expect listing USS entries with zos-node-accessor to provide the same level of granularity, but only year/month/day are set and the timestamp is missing:

zos-node-accessor/src/parser.ts

Lines 425 to 437 in 0431d0d

	if (fields[7].indexOf(':') === -1) {
	const year = parseInt(fields[7], 10);
	const month = monthText.indexOf(fields[5]);
	const date = parseInt(fields[6], 10);
	// May 8 2017
	entry.lastModified = new Date(year, month, date);
	} else {
	// Oct 2 09:48
	const now = new Date();
	const month = monthText.indexOf(fields[5]);
	const date = parseInt(fields[6], 10);
	entry.lastModified = new Date(now.getFullYear(), month, date);
	}