gamma geocode restructure

[johntruckenbrodt]

Some deeper changes in an effort to restructure the gamma.geocode function:

• gamma.geocode

  • removed arguments normalization_method, func_interp, removeS1BorderNoise, sarSimCC
  • limit radiometric normalization to RTC correction method
  • simplify and improve computation of RTC contribution area
  • file suffices pan and norm have been replaced with gamma0-rtc
  • argument export_extra options:
  • removed pix_geo
  • renamed pix_fine to pix_ratio
  • added pix_area_sigma0, pix_area_sigma0_geo, pix_area_gamma0_geo, gs_ratio , gs_ratio_geo, pix_ratio_geo
  • use a dedicated temporary directory to unpack the scene and write GAMMA files so that they are separated (the GAMMA files used to be written to the unpacked scene's directory)
  • enable multiple scenes as input so that they can be mosaiced in SAR geometry before geocoding

• gamma.correctOSV

  • new argument directory

• gamma.multilook

  • new argument exist_ok

• gamma.convert2gamma

  • new argument exist_ok

• gamma.dem_autocreate

  • do not apply an extent buffer by default
  • allow geometry in arbitrary CRS

• auxdata.dem_create

  • new argument outputBounds

• drivers

  • new argument exist_ok for ID object unpack methods to enable reuse of already unpacked scenes
  • identify_many disable progressbar by default