GroupBy Elements Core

This package contains the GB Elements Core class and related plugin interfaces.

Usage

To use Core, simply instantiate it:

``js
const core = new Core();
`

Registering a plugin

To register one or more plugins with Core, instantiate the plugins, then
pass them to Core.register():

`js
const core = new Core();
const pluginA = new PluginA();
const pluginB = new PluginB();

core.register([pluginA, pluginB]);
``

A plugin may take configuration options in its constructor. Refer to the
plugin's documentation for details.