NXP-12064: Add proxy configuration in DeviceConfig
NXP-12067: Handle proxy settings in Automation client
NXP-12063: Add proxy settings entry in Drive menu
NXP-12063: Cosmit
Remove irrelevant model.get_remote_client() function
NXP-12063: Invalidate remote client cache when updating proxy settings
NXP-12063: Use combo box for proxy config and proxy type + misc UI improvements
NXP-12063: Remove unused imports
NXP-12063: Use PyQt, not PySide
Cosmit: QT -> Qt
NXP-12063: Store proxy config labels instead of keys for display in GUI
NXP-12063: Fix error message handling in case of 'timeout' URLError