[feature] organize environments using groups --group|-g

[AllanOricil]

The inspiration came from Organizer and kubectl

The group identifies the company

sf auth:web:login -a foo -g bar => add environment to group
sf org:list -g bar => display all environments from group

It is like the namespace flag in kubectl

Use cases:

1. I can use the same aliases for the main environments (dev, qa, prod)

This would be possible
group: customer_1
enviroments: dev, qa, prod (aliases)

group: customer_2
environments: dev, qa, prod (aliases)

Instead of
customer_1_dev
customer_2_dev

2. running sfdx force:org:display will no longer be necessary to determine the customer the environment belongs to
3. group scratch orgs from multiple devhubs

[github-actions]

Hello @AllanOricil 👋 It looks like you didn't include the full Salesforce CLI version information in your issue.
Please provide the output of version --verbose --json for the CLI you're using (sf or sfdx).

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• Make sure you've provided detailed steps to reproduce your issue.
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  • Better yet, try the rc or nightly versions. (docs)
• Try running the doctor command to diagnose common issues.
• Search GitHub for existing related issues.

Thank you!

[github-actions]

Thank you for filing this issue. We appreciate your feedback and will review the issue as soon as possible. Remember, however, that GitHub isn't a mechanism for receiving support under any agreement or SLA. If you require immediate assistance, contact Salesforce Customer Support.

[AllanOricil]

@cristiand391 @WillieRuemmele @mshanemc can u turn this into a discussion