First cut at a combination of two UBP process definitions

Hi Monica, ebBP TC,

I just completed a first cut at combining a receipt advice notification UBP
process definition with one for an invoice, to demonstrate (I hope,
please correct
if necessary) an invoice being triggered by a receipt advice (this can happen by
the way, but is for illustration of course).

If I have time I'd like to show an order cancellation only allowed
after an order
has been given a successful 'order response simple' (with order accepted)
and not after a despatch advice. I just think I will need help with the latter,
more so as I haven't done much of a similar nature as yet. Plus I may not
have time before the end of the week and I guess Monica would like something
before then - so here is the simpler one in the meantime.

All the best

Steve