Improve default ui schema generation

[sdirix]

Is your feature request related to a problem? Please describe. The default ui schema generation works fine for most cases but it's missing some edge cases. For example it does not produce a Control for a property which has enum defined but no type.

Describe the solution you'd like Check and test all schema edge cases. Especially check for shortcuts where no type is required.

Describe alternatives you've considered In addition we could allow the user to customize the ui schema generation.

Describe for which setup you like to have the improvement Framework: [core]