Draft: Feature/skills manager edit arguments

Provide better views for aron tree widget viewer

See SkillManagerGuiPlugin for reference.

• provide specialized views for aron data input using aron visitors
  • Int / Long
  • Float / Double
  • Bool
  • String
  • NDArray
  • Image (file upload?)
  • PointCloud (file upload?)
  • Quaternion (4 numbers)
  • Pose (4x4 numbers)
  • Dict
  • List
  • ...
• Think about how to better visualize content for aron container types
• Sanity check -> mark fields if not convertible
• use SimoxUtilities for string conversions
• del key for removing elements from list & dict

TODOs für Fabian:

• Clipboard
• Setter if no aron type is given
• Defaults for add_element in context menu
• remove_element in context menu
• show red after add_element
• disable run btn when error
• floating precision for floating point values
• lib
• reset feature
• prevent tab in edit key of dict of object