Improve SSL setup / documentation

[mbtools]

trafficstars

It looks like quite a few have problems getting the SSL setup done right:

We could improve documentation but maybe a separate setup ABAP would be helpful that checks parameters and uploads/updates the required certificates.

https://docs.abapgit.org/guide-ssl-setup.html

https://docs.abapgit.org/other-test-ssl.html

[larshp]

@mbtools are you looking into this one?

[mbtools]

yes