NVDB QGIS Plugin

Pull request #51: NVDBDOVUTV-432 Documentation in ex

Merge in NVDBDOV/nvdb-qgis-plugin from NVDBDOVUTV-432-Documentation-in-ex to Dev

* commit '49b0bab4f883037c9ad3e028e36015f3dcc8ec32':
  NVDBDOVUTV-432: removing .env file, can not be there, that was something wrong with the last commits and .gitgnored
  NVDBDOVUTV-432: removing all __pycache__ and -pytest_cache resources, included before by accident, :)
  NVDBDOVUTV-432: updating documentation images and README files
  NVDBDOVUTV-432: updating comments
  NVDBDOVUTV-432: fixing when throwing exception because any layer is selected before re-sizing leyers
  NVDBDOVUTV-432: updating
  NVDBDOVUTV-432: updating
  NVDBDOVUTV-432: uncommenting/commenting back imports
  NVDBDOVUTV-432: new resources img for documentation