Raster decoding

Requesting to add the raster decoding classes, map files and parameter files. Note that the code is not finalized yet. I need to do the comparison with the analyzer. But due to the type of changes that went into adding the raster into hcana (such as changing the map files), Steve needs to know what type of changes I did to the map files and parameter files so he can figure out how to propagate those changes into the analyzer. So he asked me to push the code upstream where he can take a look at it. All the modifications I have done to .map and .param files are saved under files with prefix raster_*.