#528

#454
- does not work in FF

Feature/add keypad to keyboard

- TextAreaElement, TextFieldElement, TextFieldSimpleElement,
  SpellCorrectElement:
  - remove property: softwareKeyboardShowFrench
  - new property: addInputAssistanceToKeyboard

#461

#461

#461
- This property will be used for all input assistance presets
  in the future

#397

#456

- Add Property "hasAutoHeight"
- Add Directive AutoHeight

#520

#382

- Use own StateVariableStateService which uses the same new base class
as UnitStateService

#525

#525

#506