📣 borb release notes

• Added some utility methods in LayoutElement
  • get_golden_ratio_landscape_box
  • get_golden_ratio_portrait_box
  • get_largest_landscape_box
  • get_smallest_landscape_box
• Removed _calculate_min_and_max_layout_box from TableCell
• Added tests for get_golden_ratio_landscape_box
• Added tests for get_golden_ratio_portrait_box
• Added utility class A4PortraitTemplate
  • This class represents an A4_PORTRAIT Document
  • It contains methods that allow you to directly add content to it
  • All the content-adding methods have sensible defaults (font, font_size, font_color, etc)
  • This class has a utility method to immediately save the Document
• Added tests for A4PortraitTemplate
• Fixed small bug in add_outline in Document