HyP3-lib v1.0.0

This is a significant refactor of hyp3-lib into a pip installable package called hyp3lib.

NOTE: There are significant changes to the overall repository structure and this will break all
existing HyP3 workflows!

Removed

• Any official python 2 support (Note: this version will likely still work with python 2, but future versions are
  not expected to)

Added

• A packaging and testing structure -- now pip installable and testing is done via pytest and tox
• hyp3lib.draw_polygon_on_raster has been included from the depreciated python_data_utils
• hyp3lib.get_asf has been included from the (now) depreciated asf_api_assistant
• A mkdir_p function has been added to hyp3lib.file_subroutines that will create a directory, and all parent
  directories as needed (works like unix mkdir -p)

Changed

• All python modules have the from __future__ import print_function, absolute_import, division, unicode_literals
  imports added to make python 2 behave more like python 3 (NOTE: Python 2 is not longer officially supported, but it
  should work for this version)
• All of hyp3-lib/src is now contained in the hyp3lib package
• Any "script" in in hyp3-lib has been turned into an entrypoint with the same name and should mostly function
  identically if hpy3lib in installed. This includes:
  • apply_wb_mask.py
  • byteSigmaScale.py
  • copy_metadata.py
  • createAmp.py
  • cutGeotiffsByLine.py
  • cutGeotiffs.py
  • draw_polygon_on_raster.py
  • dem2isce.py
  • enh_lee_filter.py
  • extendDateline.py
  • geotiff_lut.py
  • get_bounding.py
  • getDemFor.py
  • get_asf.py
  • get_dem.py
  • get_orb.py
  • iscegeo2geotif.py
  • make_arc_thumb.py
  • makeAsfBrowse.py
  • makeChangeBrowse.py
  • make_cogs.py
  • makeColorPhase.py
  • makeKml.py
  • offset_xml.py
  • par_s1_slc_single.py
  • ps2dem.py
  • raster_boundary2shape.py
  • rasterMask.py
  • resample_geotiff.py
  • rtc2colordiff.py
  • rtc2color.py
  • simplify_shapefile.py
  • SLC_copy_S1_fullSW.py
  • subset_geotiff_shape.py
  • tileList2shape.py
  • utm2dem.py
  • verify_opod.py
• Config files are packaged and accessible programmatically from
  os.path.join(os.path.dirname(hyp3lib.etc.__file__), "config")
• The repackage_into_cogs.sh script has been moved into hyp3lib/etc/bin
  and will be distributed as package data. You can get the location
  programmatically via os.path.abspath(os.path.join(os.path.dirname(hyp3lib.etc.__file__), "bin"))