v0.9.9

• fixed guide line view
• Support Z command toggle
• Support multi segment selection
• implement to download to png
• Support dom to svg
• Support text interpolate function
• Support path transform in path editor
• Support clip-path path editor
• Support textpath
• Support svg filter graph editor
• Support fill image pattern, FuncFilterEditor
• Support svg fill picker
• Support full screen
• Support polygon data property
• Support to rebounding svg transform
• Support svg rect and circle by path
• Support svg item preview in layer tree