rename some args

[mithru]

Nature of issue

• [x] Existing feature enhancement

I realized things like the below line from fillEntity.js use the name shapeObject which perhaps makes sense in shapeEntity.js but the meaning doesn't carry through for newer methods. Maybe we can rename it to methodObject ? I sure helps me understand the code a lot better.

function FillEntity(Interceptor, shapeObject, fillArgs, canvasX, canvasY) 

For reference, if I console.log(shapeObject) I get this

{name: "fill", params: Array(4), class: "p5", module: "Color", submodule: "Setting"}

Thoughts?

[mithru]

I can do this, if we decide to make this change. Regardless, I'm using methodObject on newer entities that I implement.