AWS TerraformInit policy addition for cross account access

TerraformInitCrossAccountPolicy.json

        {
            "Effect": "Allow",
            "Action": [
                "iam:CreatePolicy",
                "iam:GetPolicy",
                "iam:GetPolicyVersion",
                "iam:CreatePolicyVersion",
                "iam:ListPolicyVersions"
            ],
            "Resource": [
                "arn:aws:iam::ACCOUNTID:policy/AdministratorCrossAccountAccess",
                "arn:aws:iam::ACCOUNTID:policy/DeveloperCrossAccountAccess",
                "arn:aws:iam::ACCOUNTID:policy/BillingCrossAccountAccess"
            ]
        }