[WIP][Feature] Enhance condition functionality

It's now possible to use a function from a service.

See #528 and #524  discussions

TODO:
- [x] PHP Action class
- [ ] generated Controllers classes
- [ ] generated FormType classes
- [x] twig object_actions block
- [ ] twig actions block
- [ ] twig batch actions block
- [x] PHP Column class
- [ ] twig column block
- [ ] documentation