Add additional OIDs to sophos-xgs module

[Don-ONeill]

Note: If you have a feature request, you should contact support so the request can be properly tracked.

Output of the info page

N/A

Additional environment details (Operating System, Cloud provider, etc):

With the release of V20 of Sophos XGS firewall, they have added some new OID's to their release. These are needed to track VPN status connections.

Steps to reproduce the issue:
1.These are missing in the existing file sophos-xgs-firewall.yaml
2.
3.

Describe the results you received:
N/A

Describe the results you expected:
N/A

Additional information you deem important (e.g. issue happens only occasionally):

In the SFOS-FIREWALL-MIB section starting at line 582 which ends at line 618.
The following lines need to be added to the sophos-xgs-firewall.yaml file in the /snmp/datadog_checks/snmp/data/default_profiles directory

  - symbol:
      name: sfosIPSecVpnConnectionStatus
      OID: 1.3.6.1.4.1.2604.5.1.6.1.1.1.1.9
    tag: sfos_ip_sec_vpn_conn_status
  - symbol:
      name: sfosIPSecVpnActivationStatus
      OID: 1.3.6.1.4.1.2604.5.1.6.1.1.1.1.10
    tag: sfos_ip_sec_vpn_active_status