Changed the naming convention referencing Interferometric pairs (Not backward compatible)

Note that this release is not backward compatible because of changes made to the interface language.

What's new in this release:

1. Diversity , replaced oppressive language

   • "master" has been replaced with "reference"
   • "slave" has been replaced with "secondary"
   • renamed the github's "master" branch to "main"

2. SAOCAM support
   A support for SAOCAM stripmap sensor has been added

3. stripmapStack:

   • exposed multiple options: --polarization, --filter_strength of "0" and --unw_method of "no"
   • call gdal2isce_xml.py inside runMultilook() if xml file missing

4. topsStack

   • use 2 digit number in run_files to better sort 10 or more steps
   • fixed orbit downloads

5. improvements to rtcApp.py:

   • Added the geocoding step.

6. Several bug fixes:

   • gdal2isce_xml: move code from main() to sub-function
   • unused "formslc includes" were removed

7. alos2App.py and alos2burstApp.py

   • minor bug fixes

8. cuDenseOffsets

   • exposed multiple options at python level

9. mdx

   • linking order and flags are fixed

other minor bug fixes.

ALOS2 processing modules + RTC + Rubber sheeting

What's new in this release?

1. ALOS2 Interferometry contributed by Cunren Liang

   • alos2App.py
     • Regular InSAR processing (All possible acquisition mode combinations)
     • Pixel offset (spotlight/stripmap)
     • Ionospheric correction (all possible acquisition mode combinations)
   • alos2burstApp.py
     • ScanSAR burst-wise interferometry
     • ScanSAR burst Spectral Diversity (SD) or Multiple Aperture InSAR (MAI)
     • ScanSAR ionospheric correction
   • Deprecation of scansarApp.py in favor of new alos2 apps

2. rtcApp.py completed by Simon Kraatz from MIRSL

   • Updated rtcApp.py to work with S1 GRD data

3. stripmapApp.py updates by Virginia Brancato

   • Added rubbersheeting in range to work with interferometric cryosphere processing
   • Added alternative (to nearest neighbor) hole filling
   • Updated ionospheric phase filtering

4. Updates to UAVSAR_HDF5_SLC Sensor to work with UAVSAR data in NISAR formats

5. Number of bug fixes for stack processors

6. Compatibility

   • Updates to work with Python 3.8
   • Updates to work with gcc9

Planned release for UNAVCO Short Course 2019

Whats new in this release?

1. Raised cosine weighting in range for formslc
2. New Sensors
   • SICD
   • ICEYE_SLC
   • UAVSAR_HDF5_SLC
   • ERS_ENVISAT_SLC
3. Bug fixes
   • Number of typos in stack processor
   • ALOS quad pol support
   • Replacement of deprecated imp with importlib
4. Multi resolution unwrapping option for topsApp.py

First release on github

This is the first release of isce2 on github.
This first version is to assist in development of installation scripts for package managers.