Schedule of commit fests for PG14

Hi all,

Normally $subject would have been discussed at the developer meeting
in Ottawa, but that's not going to happen per the current situation.

For the last couple of years, we have been using the same timeline for
for commit fests in a development cycle, so why not going with the
same flow this year? This would mean 5 CFs:
- 2020-07-01~2020-07-31
- 2020-09-01~2020-09-30
- 2020-11-01~2020-11-30
- 2021-01-01~2021-01-31
- 2021-03-01~2021-03-31

Any thoughts or opinions?

Thanks,
--
Michael