constructor(formId, layout, formBuilder) {
    this.data = instanceData[formId]
    this.d = instanceDom[formId]
    this.config = instanceConfig[formId]
    this.doCancel = false
    this.layout = layout
    this.handleKeyDown = this.handleKeyDown.bind(this)
    this.formBuilder = formBuilder
    this.toastTimer = null
  }
Setup defaults, get instance data and dom
@param  {string} formId
@param {Object} layout object instance used by various helpers
@param {Object} formBuilder instance