Is your feature request related to a problem? Please describe.

Libraries currently must contain a directory hierarchy representing the library namespace. This is superfluous since the manifest.json already defines the library's namespace.

These directories seem bulky and are probably more likely to have a negative impact on a developer's efficiency than a positive one. Especially when working with command line tools.

Describe the solution you'd like

UI5 Tooling should automatically detect whether a library is "flat" or not. I.e. by searching for a top-level manifest.json.

It can then create a virtual directory structure based on the namespace defined in the manifest.json. In fact, this already happens for application projects.

Describe alternatives you've considered

none

Additional context

none