extractThangTypeSchemaSlug = thangType => {
  if (!(thangType || {}).type) {
    return
  }
  if (!(thangType.type || {}).slug) {
    return
  }
  const { pos, scaleX, scaleY } = thangType
  const thang = { pos, scaleX, scaleY }
  const slug = thangType.type.slug
  return { thang, slug }
}
Returns a thang from a thangType if properties exist.
@param {Object} thangType that matches the ThangTypeSchema with a Character Slug
@returns {Object|undefined} returns thang if required properties exist.