Vertices and verticesNeedUpdate errors in Three.js r125

[subvertallchris]

Three.js r125 introduces some breaking changes to BufferGeometry. In particular, these lines will have trouble. I'm unsure about the rest of the repo.

I created a post on StackOverflow here asking for help with this and an answer came in quickly. Tldr; you could fix those lines with something like this:

    const negativeWidth = -this.canvas.width / 2;
    const positiveWidth = this.canvas.width / 2;
    const positiveHeight = this.canvas.height / 2;
    const negativeHeight = -this.canvas.height / 2;

    this.geometry.attributes.position.setXY(0, negativeWidth, positiveHeight);
    this.geometry.attributes.position.setXY(1, positiveWidth, positiveHeight);
    this.geometry.attributes.position.setXY(2, negativeWidth, negativeHeight);
    this.geometry.attributes.position.setXY(3, positiveWidth, negativeHeight);
    this.geometry.attributes.position.needsUpdate = true;

I'm not going to submit a PR here because I'm unsure of how this would impact earlier versions and I'm not prepared to find out but I wanted to share in case anyone else wants to give it a shot.