Add a recipe for auto-complete combo box

[HerbertsVaadin]

Description

A Java only example of how to create a simple auto-complete combo-box.
This auto-complete combo-box implementation supports only list data (items set with setItems(Collection) or setItems(T...)). I think that's not a problem, since it's the most common use case.

Fixes # (issue)
#336

Type of change

• Bugfix
• Feature

Checklist

• I have read the contribution guide: https://vaadin.com/docs/latest/guide/contributing/overview/
• I have added a description following the guideline.
• The issue is created in the corresponding repository and I have referenced it.
• I have added tests to ensure my change is effective and works as intended.
  • Not relevant
• New and existing tests are passing locally with my change.
  • Not relevant
• I have performed self-review and corrected misspellings.

Additional for Feature type of change

• Enhancement / new feature was discussed in a corresponding GitHub issue and Acceptance Criteria were created.

[github-actions]

There has not been activity on this pull request for 180 days and it will be marked as stale and closed in 7 days.