[Core API] Individual resources

• Add endpoints to list and create contact in a specific team or for a specific teammate
• Add endpoints to list and create contact group in a specific team or for a specific teammate
• Add endpoints to list channels in a specific team or for a specific teammate
• Add endpoints to list and create inbox in a specific team or for a specific teammate
• Add endpoints to list and create tag in a specific team or for a specific teammate
• Add endpoints to list rules in a specific team or for a specific teammate
• Add endpoint to create an export for a specific team
• Add endpoint to generate analytics for a specific team
• Add the ability to access individual resources
• Add is_private boolean field to differentiate between individual and shared resources
• Add owner related link to identify the owner (either a team or a teammate) of a resource

Deprecated

• Deprecate teammate_id field when generating an export
• Deprecate endpoint to get the inbox of a channel
• Deprecate team_id field for creation endpoints
• Deprecate address, send_as and type inbox fields