Support for Windows NT FTP servers

[sspross]

We had some problems trying to connect to a Windows NT FTP server. FTP LIST lines look totally different from the linux ones, therefore we needed another regex parser and decoder in the _ftp_parse.py file. I tested it against this server and our requirements (list directories, create directories, create files) work fine. But let me know if this PR doesn't match your style or if I have to do something else/different. Best regards!

Support for Windows NT lines ftpfs.py:_read_dir():

[
    '11-02-18  02:00PM       <DIR>          asdf',
    '11-02-18  01:50PM       <DIR>          data',
    '11-01-18  01:41PM       <DIR>          doc',
    '11-02-18  02:12PM       <DIR>          images',
    '11-02-18  03:33PM                 9276 logo.gif'
]

[willmcgugan]

Looks great! Any chance of a unit test?

[sspross]

Sure, I just added a unit test and fixed some of the CI warnings as well. But first, because of my _parse_time change, the unit tests failed locally. But the CI was happy here... is there something wrong with the CI reporting into github checks?

[coveralls]

Coverage decreased (-0.7%) to 99.049% when pulling cbd2234 on sspross:support-windowsnt-ftpserver into 5643bad on PyFilesystem:master.

[willmcgugan]

Thanks. I'm not sure why CI was reporting an error there. I'll look in to that.

[sspross]

Thanks for merging! Just to clarify: The problem was, that the CI was NOT reporting an error here in the CI github hook. And last question: Do you will create a minor version bump for this update? Best Regards, Silvan

[willmcgugan]

Yeah, I don't know why the CI error wasn't showing up. It certainly used to.

Will do a minor update soon. Need to review some other fixes.

[willmcgugan]

Fix is in v2.1.2