f_glitch 0.1.3

Add glitch effect and RGB shift effect to selected image and change frequency of occurrence to these effects.

[0.1.2]

• change scanline LinearGradient to CutomPainter

[0.1.1]

• add asImage() in GlitchController
• show/hide effects
• scan line
• glitch level

[0.1.0]

• add GlitchController

[0.0.3]

• add image fit parameter

[0.0.2]

• use static Random()
• timer.cancel
• add doc
• update example
• etc

[0.0.1]

• Initial release.