handling of GEE image catalogs

[ashishgitbisht]

• which operating system are you using?
  e.g. Windows 10, Ubuntu 18.4, etc.
• which environment is pyroSAR running in?
  e.g. system-wide Python installation, Anaconda environment, virtual environment, etc.
• which version of pyroSAR are you using?
  one installed via conda, pip or a clone of the GitHub repository?
• which function of pyroSAR did you call with which parameters?
• if applicable, which version of SNAP or GAMMA are you using in pyroSAR?
• the full error message