Gns3-gui

* Fix "Console to all nodes" doesn't open cloud objects with console configured. Fixes 2902
* Change default path for SecureCRT. Fixes 2896
* Add icons in setup.py Ref 2898
* Add remote viewer as a VNC console for Linux. Fixes 2913

* Fix issue when binding on 0.0.0.0. Fixes 2892
* Allow double click on cloud with configured console to open session. Fixes 2894
* Officially support Python 3.8. Ref https://github.com/GNS3/gns3-gui/issues/2895
* Set psutil to version 5.6.3 in requirements.txt

* Fix KeyError: 'spice+agent'. Fixes 2890
* Fix wrong log.error() call when exporting file.
* Revert "Explicitly cleanup the cache directory."
* Fix "UnboundLocalError: local variable 'pywintypes' referenced before assignment"
* Fix GUI uses only telnet console. Fixes 2885
* Fix missing sys module in sudo.py Fixes 2886

* Check if console_type is None.
* Explicitly cleanup the cache directory.
* Get Windows interface from registry if cannot load win32com module.
* Ignore OSError returned by psutil when bringing console to front.
* Catch error if NPF or NPCAP service cannot be detected. Ref https://github.com/GNS3/gns3-server/issues/1670
* Better handling for reading synchronous JSON response from server. Ref 2874
* Fix JSONDecodeError when getting server version. Fixes 2874
* Fix FileNotFoundError exceptions when launching SPICE or VNC clients.
* Fix UnboundLocalError local variable 'win32serviceutil' referenced before assignment
* 'Fix' tab order in preferences dialog so it follows the layout
* 'Fix' tab order in edit project dialog so it follows the layout
* Use compatible shlex_quote to handle case where Windows needs double quotes around file names, not single quotes. Ref https://github.com/GNS3/gns3-gui/issues/2866
* Use 0.0.0.0 by default for server host. Fixes https://github.com/GNS3/gns3-server/issues/1663
* Catch IndexError when configuring port names. Fixes 2865

* No changes

* Adjust size for setup dialog and remove question about running the wizard again. Ref 2846