Move gateway interface friendly name functionality to gwlb.inc
Revise return_gateways_array() to include the tier name in hte returned array. This avoids the need to call the function for every gateway in the array and makes life easier for system_gateways.php, which no longer needs to call multiple functions to get the display information.
Fix indenting
Fixed #10719 by adding tooltips and help text
Merge pull request #4350 from vktg/ipsecgwdescr
Merge pull request #4377 from vktg/dhcpv6lifetimecheck
Merge pull request #4375 from vktg/nat11extip
RA lifetime input validation. Fixes #10709
Support dynamic interface address for 1:1 NAT. Implements #7705
Merge pull request #4175 from vktg/importpkcs12
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