Add support for DD-MM-YYYY / YYYY-MM-DD in file names

[vodkapmp]

For easier sorting of episodes, using a date based format (DD-MM-YYYY / YYYY-MM-DD) would probably be preferable.

This is also supported by the plex naming convention. As seen under "Date-Based Television Shows" section here

Using this, there should be no need to do any sort of episode numbering.
This would also work for sorting the files for people not using plex/emby/jellyfin, as they would be sortable by release date if using YYYY-MM-DD format.

[Inrixia]

Re testing on discord using the plex Date-Based Television Shows unfortunately does not work as plex only supports going as far as daily episodes while videos from floatplane as sometimes posted within seconds of each other.

What I have done is added support for using %day%, %hour%, %minute% and %second% in the title formatting so you can utilize those for custom formatting options in 570ad16.

I have also set the new default format for episode numbering to be S%year%E%month%%day%%hour%%minute%%second% in ea74f7f as its much more reliable than using the generated episode number.