[WIP][FEATURE] Implemented editable select component

__Tasks:__
- [x] Implement editable select
- [x] added demo for editable select
- [x] apimock for delete action
- [ ] gather feedback for my changes

__Informations:__

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| Tests pass?   | none
| Fixed tickets | none
| Doc           | none

comments are not necessary, since already documented in the header