Text to vector conversion and shape extrusion controls

This update introduces the ability to convert text to vector and improves shape extrusion controls using the resize handler.

Changes

• New: Ability to convert text to vector.
• New: Control the shape extrusion using the resize handler.
• Improved handling of vector holes (from svg and text conversion).
• Improved camera controls (free rotation and better performances).
• Improved lighting for double sided materials.
• Fixed frame mode display and ui bugs.
• Minor fixes and improvements.