Clarify this Module's Support Status

[dijitali]

The PowerShell modules for GCP are referenced in a bunch of places as supported tooling for integrating with GCP and we've now got several scripts that use this module:

• Developer Tools on GCP
• CodeLabs: Install and use Cloud Tools for PowerShell
• Cloud Tools for PowerShell: Quickstart

However this repo hasn't had any commit activity in over a year and any issues raised get the response that this tooling is under "maintenance mode", for example:

• [FeatureRequest] Add cmdlets for Datastore management #624 (comment)
• [FeatureRequest] Add cmdlets for Datastore management #624 (comment)
• Support to pull GCE metrics? #584 (comment)

If this is the case and this project is being mothballed, it would be useful if you could clarify in the documentation that no new functionality is expected.

As a user, it's frustrating that this wasn't communicated and we're now stuck with a library that is going to be of little use as the GCP platform moves forward without this module.