Provide an ability to export the Google Calendar configuration for offline work

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Expected Behavior

The system works the same way (following the schedule set in the calendar) regardless of whether there is Internet access or not.

Actual Behavior

• If Internet is not available at system startup, the schedule is not available at all until connectivity is restored
• If Internet drops off while the system is already running, schedule changes will not be visible, and schedule events not cached in advance will not be activated

Compounding Factor

Schedules can be complex and span over months and years, and there's lots of them.

Possible Corrective Action

• Implement a way to export the existing Google Calendar schedule into a form that will make it available offline;
• Use this form for quick system startup;
• Ideally, have this form simple enough so that an online integration can be dropped altogether.