- Remove redundant dependencies (i.e., those, that are already contained and re-exported by the actual dependencies)

  - Move label provider to dedicated package
  - Move generic annotation view to dedicated package
  - Move inner classes of GenericAnnotationView to separate classes (filter support in dedicated package)
- Small documentation updates
- No functional change
refs 1841

  - ExtendedCCombo -> CCombo whose entries are linked with foreign data

- Introduce sub packages for annotation framework (see org.fortiss.tooling.base.ui.annotation -> package.html for documentation)
- Standardize class names

refs 2048

refs 1841

refs 1686

refs 1369

refs 1249

refs 862

refs 794

refs 446

refs 425

refs 378

moved dialog package to base.
removed type constraint in EcoreUtils#pickInstanceOf

refs 301

refs 352

refs 370

refs 346

refs 86

refs 311

refs 339

refs 340

refs 86

Some cleanup of code => YELLOW.
refs 152

refs 233

refs 214

refactored default layout constants for connectors

channel creation works on the model level, but not yet on the UI level