Add MS-DOS and Win32 Timestamp Conversion to rz-ax

[TheN00bBuilder]

Your checklist for this pull request

• [v] I've read the guidelines for contributing to this repository
• [v] I made sure to follow the project's coding style
• [v] I've documented or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• [v] I've added tests that prove my fix is effective or that my feature works (if possible)
• [?] I've updated the rizin book with the relevant information (if needed)

Detailed description

This adds MS-DOS and Win32 timestamp conversions in the rz-ax util / command. These have been added as flag -m and -W respectively. The relevant help / print statements have been edited. Given rz_time_stamp_is_dos_format is in the codebase, we can "guess" if the timestamp is MS-DOS or Unix, so it may be better to have that all under the -t command, but I don't know if that's a good plan. Would like feedback from the maintainers on everything.

I didn't see any appropriate place in the rizin book for this, but I did update the help command for rz-ax with the new field and confirmed it shows up.

Test plan

As long as the rz_time_date_dos_to_string function is tested, this can be considered tested. I did not see any tests explicitly testing the -t command in the test database.

Closing issues

closes #4515

[TheN00bBuilder]

D'oh - just realized that MS-DOS timestamps are different from Win32. Adding Win32 now.

[TheN00bBuilder]

There we are. Here's the updated command output.

[XVilka]

Thanks!