Creation of new events

[jgclark]

Extend to allow creation of new events in Apple Calendar when the #create_event tag is used on a line (task, comment or heading). It would use the existing timeblocking syntax (either at 8[-11][AM|PM] or 3:00[-4:00][AM|PM]) but doesn't just show time on the NotePlan calendar, but make a proper event.

For example, this would allow for meeting events to be listed in a daily note, and also created in the calendar, for example:

### Project X Meeting #create_event 10-11am

In combination with the date offset patterns above, it further allows scheduling preparation time days or hours before events, for example:

### Project X Meeting #create_event 10-11am
* write agenda {-5d} #create_event 9:00-9:30

[jgclark]

Basic function is working in v1.8.0.

I'd now would like to add:

• ability to take ' at X' as location of event
• take any indented notes/comments and include as the notes for the event (subtracting the indent)

[jgclark]

Need to update the code to open Calendar if it isn't running. Want to allow different string than #create_event as well.

[jgclark]

Done all of these with commit 496c568fc72fabe1e90347b02c0f90d1123544cb, so closing.