allign bundle with XJDF and add reference to Coordinate system

<use 2.0 version>Bundles are used to describe various kinds of sets of packing units such as boxes, cartons and pallets. Bundles.</2.0>
<leave in 1.6>Note: that Bundle resources can MAY be created by many press or postpress processes and not only Bundling.</1.6>
<add to both> The coordinate system of a Bundle is defined by the orientation of the first i.e. bottom component in the bundle. See ##ref Figure 8-9: Bundle coordinate system</both>