FEATURE: Allow to translate labels

[dlubitz]

This PR adds a new feature to translate labels into the Neos UI language. The translation keys get cofigured in the setting with the translation id.

TechDivision:
  CkStyles:
    InlineStyles:
      presets:
        'fontColor':
          label: Vendor.Package:Main:inlinestyles.fontcolor.label
          options:
            'primary':
              label: Vendor.Package:Main:inlinestyles.fontcolor.options.red
              cssClass: 'my-class-red'
            'secondary':
              label: Vendor.Package:Main:inlinestyles.fontcolor.options.green
              cssClass: 'my-class-green'