RPCModel: Minor reorg to support existing RPC model optimization
dg_mosaic: Use true boxes, we will need this later when we deal with rpc optimization
dg_mosaic: Read lon-lat-height boxes for all xml files
Parse BBox3
rpc_mapproject: Description added
rpc_gen: New files and prototype code
Finish RPC model gen
Bugfix: make stereo_utils.py be included in release
Another pass at fixing stereo deps.
StereoSettings: Provide defaults for all of them
dg_mosaic: Fix microsecond formatting and xml parsing bugs
Enable sparse_disp for all ASP alignment methods
dg_mosaic: Fix artifact with a gap showing at stitch boundary
build_vw_asp: script to build ASP/VW