Globus-cli

Enhancements:

* All commands now support a `--quiet` option which minimizes verbosity. For
most commands, this option will not change the default output, but
it will counteract the `-v/--verbose` option.

* Completion support has been added for inputs which are JSON strings or files.
These will autocomplete to filenames when possible, for users leveraging tab
completion.

* When `globus login` is run with the `--quiet` flag, it will print no output
if you are already logged in.

* `globus gcs collection list` can now return results in excess of the GCS default
page size; control over the number of results returned is available
via the `--limit` option.

Other:

* All support for Delegate Proxy Activation has been removed. This change
is part of removal of GCSv4 Activation Support. Users should not experience
any impact, as there are no longer any valid usages for Delegate Proxy
Activation.

Bugfixes:

* Fix a bug which would break rendering if a user created a timer with no end.

* Resolve a `KeyError` that can happen if scope resolution fails during flow validation.

Bugfixes:

* Fix printing of API errors which do not contain JSON data

Enhancements:

* Improve the reporting of errors found by `globus flows validate`

Bugfixes:

* In certain conditions, the CLI would not handle Broken Pipe errors (EPIPE)
correctly, resulting in error messages on stderr when commands were piped to
commands like `head`. The handling of broken pipes has been improved to avoid
these spurious error messages.

Enhancements:

* Allow subscriptions to be assigned to existing flows
using the `globus flows update --subscription-id` option.

* Added a new *beta* command `globus flows validate` to validate a provided flow
definition and optional input schema without creating a flow. This command provides
extended validation and analysis of the provided flow definition.

* The presentation of Globus Flows API errors has been improved, especially for
cases relating to data validation failures.

Enhancements:

* Add `globus group get-by-subscription` for looking up Subscription Groups
based on their subscription IDs.

* Add `--parent-id` to `globus group create`, allowing group administrators to
create subgroups.

* Add `globus group get-subscription-info` command to display a subscription.
* `globus group show` now displays subscription-related information for groups
when present.

* Add `globus stat` for getting the status of a path on a collection.

Other:

* Remove implicit `autoactivate` calls from various Transfer operations.
They are no longer needed and incur a minor performance penalty.