Missing types for graph level data

[danielnichols]

If you know how to fix the issue, make a pull request instead.

• I tried using the @types/cytoscape package and had problems.
• I tried using the latest stable version of tsc. https://www.npmjs.com/package/typescript
• I understand that @types package versions do not follow SemVer.
• I have a question that is inappropriate for StackOverflow. (Please ask any appropriate questions there).
• Mention the authors (see Definitions by: in index.d.ts) so they can respond.
  • Authors: @phreed
    @wy193777
    @ypconstante
    @janniclas
    @Cerberuser
    @gsbelarus
    @PeterJFerrarotto
    @Spaxe
    @appleparan
    @Veckodag
    @zakjan

The following code snippets cause issues:

const graph = cytoscape({ data: { foo: 'bar' } });

Argument of type '{ data: { foo: string; }; }' is not assignable to parameter of type 'CytoscapeOptions'.
  Object literal may only specify known properties, and 'data' does not exist in type 'CytoscapeOptions'.ts(2345)

const data = graph.data();
const dataField = graph.data('foo');
graph.data('bar', 'foo');
graph.data({ foo: 'baz', hello: 'world' });

Property 'data' does not exist on type 'Core'.ts(2339)

graph.removeData('foo');

Property 'removeData' does not exist on type 'Core'.ts(2339)

Docs for the graph data field are here: https://js.cytoscape.org/#cy.data