Add RegisterDNS to adminx.Org Setup

[stephen-soltesz]

This change adds a new method to the adminx.Org to RegisterDNS that ensures the organization DNS zone exists and is configured correctly with in the project wide zone. The organization DNS zone will contain only hostnames dynamically registered by autojoined nodes from that organization.

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This change is 

[coveralls]

Pull Request Test Coverage Report for Build 10797613745

Details

• 21 of 21 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 98.825%

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Totals
Change from base Build 10797083367:	0.02%
Covered Lines:	1093
Relevant Lines:	1106

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💛 - Coveralls

[cristinaleonr]

Reviewable status: complete! 1 of 1 approvals obtained (waiting on @stephen-soltesz)

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cmd/orgadm/main.go line 57 at r2 (raw file):

	o := adminx.NewOrg(project, crmiface.NewCRM(project, crm), sa, sm, d)
	err = o.Setup(ctx, org)
	rtx.Must(err, "failed to setup new organization: "+org)

set up?

[stephen-soltesz]

Thank you!

Reviewable status: complete! 1 of 1 approvals obtained (waiting on @cristinaleonr)

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cmd/orgadm/main.go line 57 at r2 (raw file):

Previously, cristinaleonr (Cristina Leon) wrote…

set up?

Done