SIX-2.0.6

•Renamed some methods in SceneGeometry? and added support for computing angles with respect to both ETP and OP
•Removed RangeAzimuth? object and replaced with types::RgAz?
•Projection polynomial fitting is more flexible, moved out of ProjectionModel?
•Fixed a bug in how ErrorStatistics?/CompositeSCP/RowColErr was parsed (affected SICD 0.4.x, 0.5.x, and SIDD when this field was present)
•Fixed a bug in SICD 1.x where UNKNOWN and SEQUENCE were previously not supported in RadarCollection?\TxPolarization?
•Fixed a bug in SICD 1.x where the order of the elements in the RadarCollection? block had not been treated properly when reading (they were correct when writing)
•Added support for SICD 1.1
•Reduced ProjectionModel?'s DELTA_GP_MAX which will have the effect of potentially taking additional iterations in sceneToImage() in order to converge on a more accurate solution. In testing with a wide variety of data, no failures to converge were discovered.
•Source can be downloaded from https://github.com/ngageoint/six-library/archive/SIX-2.0.6.tar.gz