SIT Reg Organiser: Sort Order of Participant List

[skemp353]

I find the default sort order of the participant list in the SIT Reg Organiser app to be not very useful (it sorts alphabetically by first name). Personally I always want to go in there to see who has most recently registered, so for me it would make sense that the list was ordered by "ID" so I can see who has registered first/last.

Of course this may not suit everyone, so perhaps we could change the default sort order and also add the ability to sort on any of the columns in the list?

[gregorwolf]

Please check the commit sapmentors/SITregOrganizer@af40085 where I've added sorting & grouping. The change should be also visible in the app at https://sitregorganizer-a5a504e08.dispatcher.hana.ondemand.com/ . Please give it a try.