feat: add linechart change animation (#117)

[1729patrick]

Description

I write a custom animatable vector that conforms with VectorArithmetic to animate smoothly the line when the data change.

Motivation and Context

The previous line change aren't animated, so serious! Feat request (#117)

Screenshots (if appropriate):

Change.Line.Animation.mp4

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Non-functional change (Updating Documentation, CI automation, etc..)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.