New: Add support for enabling and disabling zoom (fixes #62)

[parmar-abhinav]

Description:

This pull request introduces enhancements related to zooming functionality. The changes aim to provide users with more control over zooming interactions. Here's an overview of the modifications made:

• Added a new property isZoomEnabled to the optional interaction object.

• isZoomEnabled allows users to enable or disable the zooming feature in the graph.

• When isZoomEnabled is set to true, users can interactively zoom in and out of the graph.

• When isZoomEnabled is set to false, zooming functionality is disabled, restricting users from changing the zoom level.

Example:

//To enable zooming
orb.setSettings({ interaction: { isZoomEnabled: true } });

//To disable zooming
orb.setSettings({ interaction: { isZoomEnabled: false } });