Multiple Presentation with specific dates

[eurodude]

It is needed that we are able to add multiple presentations which will be automatically displayed at certain dates and times. This allows for presentation preparation in advance without the need to add each presentation manually at the right time.

[eurodude]

The Idea is that in the main folder there will be subfolders:
ex. "2017-12-03" which would contain the presentation for december 3rd 2017.

If you need to change presentation on december 3rd at 10:00 and once at 14:00, the folder would be called as follows:

1. 10-00_14-00
2. 14-00_18-00

the 10-00_14-00 means "show from 10:00 to 14:00"

what if the folders were:

1. 10-00_15-00
2. 14-00_18-00
   Then presentation 2) will start at 14:00.

if the folder only shows:

1. 10-00
2. 14-00
   Then the presentation from 14-00 will replace the one from 10-00 and it will run until midnight.

Outside of these special cases, the default presentation at the root will be displayed

[eurodude]

An additional, implicit requirement is then that the localisation should be correct (UTC +/- [0-12]).