v0.5.3.1

• Internal updates
  • Migrate code to netstandard2.1 (except unit tests)
  • Update C# version and enable nullable feature (improving overall code quality)
• Add methods to manipulate window position/size after creation
  • window.position property (writable) to get current position of window or move it
  • window.size property (writable) to get current size of window or resize it
  • window.min_size property (read-only) to get minimum size of window
  • window.compact() resize window to its minimum size
  • window.center() center window on screen
• Fix an issue when trying to display empty telemetry timeseries
• Fix issue using inside a lambda-function (#118)
• Fix compilation error of if-else-return cascade (#119)
• Fix reference rendering of debug vectors in flight view