Add support for programmes and programmestarts into eduadmin-detailview and eduadmin-bookingview

[pmerkland]

So that you only need one detail page and one booking form page.

[pmerkland]

I guess the programme-detail and programme-book still need to be supported ass we have customers using it.

[pmerkland]

Not sure it would be a breaking change, just build support for programmes info those pages and make those pages selectable under settings:

[itssimple]

They still differ a lot, since I fetch them from different endpoints, which is why I put it as a breaking change, because I'd have to rewrite the logic for displaying things, depending if they are a programme, or a course template.