Animate should have Ease In-Out built in

[romanr]

Great library, thank you!

When doing the animate, it suddenly stops and stops and restarts at every key point. It's evident on video, you can tell where are the key shapes https://github.com/lokesh-coder/flutter_blobs#%EF%B8%8F-animate-fixed-shapes

To make it it look natural every shape key point should have ease In and Ease Out.