WIP: Add information about different flavours of Krita
I wanted to write all about different kinds of Krita: both different versions (as in, from which commit they were made), and different types of packaging. Some of the information was quite needed (nightly flatpaks, Windows portable), some of it was just added for completeness sake.
- Steam vs Windows Store vs others
- Android (only apks left)
- check debug symbols
- Krita lime