[Calendar] Bulk Upload Calendar Events

[egncl]

Problem statement:

It takes a long time to add non-repeating calendar events, as each one must the done through a series of mouse clicks.

Proposed solution:

A CSV upload would save a lot of time for creating these, as not only could the data be drawn from other sources at the institution, but we wouldn't have to click multiple times and into multiple layers of the calendar menu for each individual item.

User role(s):

admin,instructor