AutoComplete must be refactored

[Minkov]

Overview

It does not work in following use cases by default

1. With defaults, i.e. no additional configuration:

• Create a custom controller, but do not define/override AutoComplete

2. With no custom controller

• FormControlAutocompleteController cannot be set

3. Only returns 20 records. This should be configurable
4. Only words with strings
5. Only works with entities that have a single primary key
6. Only works if the primary key is called Id

Additionally, this must be the default for navigational properties.