## Description
In order for purge to gracefully handle the variety of timestring values that may appear within a
folder name, the common/time.go file has added
a func to extract a time substring from a string.
Purge is switched to that extractor instead of
a len-based suffix check.
## Type of change
- [x] 🐛 Bugfix
## Issue(s)
* #805
## Test Plan
- [x] 💪 Manual
## Description
Graph clips time values ending in :00 from folder
names. In order for the purge handler to check
the time values correctly, we need to identify
those folders and reinstate the 00 seconds tail.
## Type of change
- [x] 🐛 Bugfix
## Issue(s)
* #805
## Test Plan
- [x] 💪 Manual
expands the `purge` command to accept args for
purging mail folders, calendars, or both. This
allows the test cleanup to ensure we aren't over-
populating either mail folders or calendars, thus
blocking CI actions
swaps the corso go module from github.com/
alcionai/corso to github.com/alcionai/corso/src
to align with the location of the go.mod and
go.sum files inside the repo.
All other changes in the repository update the
package imports to the new module path.
Adds the base CLI integration tests for backup, list, details,
and restore. Also refactors out the global root command
value in favor of a ctx-bound reference so that tests may
control safely overwriting stdout to scrutinize output.
Adds the basic cli-based backup integration test.
Due to discovering some corner cases about panic
conditions and other error handling in bad runtime
state, updates many other packages for safety.
