Drupal Commerce Shipping BOF

* Problems: tare weight - packing materials, customized boxes.
* Core shipping must be an API.
* Shipping service APIs
  * requirements, absolute match or don't bother.
  * return dev errors that are irrelevant, obscure.
* Strong API for handling boxing
  * Dropship
  * Items suitable for ground shipping
  * Items suitable for air shipping
  * tare weight
  * Box costs
  * item handling
    * single box - only item per box
    * multiple items, same item
    * multiple items, any time
    * product "classes", e.g. "this box can hold 3x class A items"
    * item density?
* Embarkation points / warehouses
  * Shipping points (one default)
  * Proximity to destination
  * Item storage
* UI
  * standard boxes (from shipping companies)
  * customized standard boxes
    * 3d display of a box, fill in the dimensions
  * max weight
  * shipping:
    * auto-calculate items to go in each package
    * auto-show the total weight
    * show default tare,
    * override to show tare
  * Shipping label printing
* Batch operations for shipping spec updates
* Hooks for shipping estimate being displayed
  * Separate module to allow live chat, "I see you're shipping 5,000 kegs to Botswana".
  * Separate module to allow notifications, "We're only legally allowed to ship 4,000 kegs to Botswana".
* Hooks for every step allow for overrides at every business-logic point.
* After enabling, links to view PDF with (neophite-grade) guide for customizing basic things.
* How to Amazon et al do it?
  * Classify products in general sense
  * Customized packaging to minimize shipping costs
* Simple enough UI for most basic users