AWS Security Group changes

[jmolnar-zscaler]

ENHANCEMENTS:

• Module Changes:
  • terraform-zscc-ccvm-aws:
    • add variable additional_management_security_group_ids
  • terraform-zscc-asg-aws:
    • add variable additional_management_security_group_ids
  • terraform-zscc-sg-aws:
    • add resource aws_security_group.outbound_endpoint_sg
    • add variables byo_route53_resolver_outbound_endpoint_group_id and zpa_enabled
  • terraform-zscc-route53-aws:
    • add variable outbound_endpoint_security_group_ids
    • remove default security group usage per AWS best practices

[nmizhquirizs]

Code Looks good. Please fix the Merge Conflicts on the CHANGELOG.md