Add more date patterns

[BelKed]

It seems that the date format no longer depends on the language settings. In Settings > Preferences, you can find a Date Format section, where you can set a variety of date formats:

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This PR adds support for all of them.
Related to stale #155.

[FriedrichFroebel]

Thanks for the updated PR. Is there any reason for dropping the г format completely, whereas only Windows is affected (maybe related to https://bugs.python.org/issue8304)? We already have exceptions for Windows date formats inside our code and should probably use a similar approach here:

pycaching/pycaching/util.py

Line 99 in 2a6067b

eat_zero_prefix = "#" if platform.system() == "Windows" else "-"

Just for the record, the offending exceptions is the following one:

>           formatted_date = datetime.datetime.strftime(date, pattern)
E           UnicodeEncodeError: 'locale' codec can't encode character '\u0433' in position 9: encoding error

[BelKed]

Just the Windows build was failing…
I’ll take a look at it in the evening and hopefully add a commit with fix for Windows :)

[BelKed]

As I promised, I fixed it...

Feel free to let me know about any issues with this solution :)

[FriedrichFroebel]

Thanks, seems legit to me. Nevertheless, I would probably prefer to avoid this overhead for Linux and macOS. Could you make the offending section conditional, please? Meaning:

if platform.system() == "Windows":
    # Use solution with encoding and decoding.
else:
   # Use old solution.

[BelKed]

Sure, 8e2acd2

[FriedrichFroebel]

Thanks for your fix and patience.