nitfdataset.cpp doesn't descriminate between RPC00A and RPC00B coefficients

[JaredRubinAZ]

From the documentation that I have read on the RPC00A and the RPC00B tags, the coefficients used in the polynomial are in a different order for doing ground/image and image/ground projections. So if you are going to use the projection assuming the RPC00B polynomial than you need to remap the RPC00A coefficients to RPC00B as follows:

{0, 1, 2, 3, 4, 5, 6 , 10, 7, 8, 9, 11, 14, 17, 12,

15, 18, 13, 16, 19};

otherwise your projections will be wrong. I have verified this with sample imagery.