Re-add formAssociation

[tishoyanchev]

By creating this pull request you agree to the terms in CONTRIBUTING.md.
https://github.com/Infineon/.github/blob/master/CONTRIBUTING.md
--- DO NOT DELETE ANYTHING ABOVE THIS LINE ---

NOT READY FOR MERGE

• re-add formAssociation for all components that had it before

  • checkbox
  • checkbox-group
  • date-picker
  • radio-button
  • radio-button-group
  • multiselect
  • switch
  • text-field
  • textarea

• test type related issues

• test

📦 Published PR as canary version: 37.22.1--canary.2074.58c6101b66a2b56dcd0ec5d1e5ab735186d23782.0

✨ Test out this PR locally via:

npm install @infineon/infineon-design-system-stencil@37.22.1--canary.2074.58c6101b66a2b56dcd0ec5d1e5ab735186d23782.0
# or 
yarn add @infineon/infineon-design-system-stencil@37.22.1--canary.2074.58c6101b66a2b56dcd0ec5d1e5ab735186d23782.0

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