Setting TCP flags, quick and state type for floating and normal firewall rules (required for Asymmetric Routing)

[davidnetten]

Is your feature request related to existing pfSense functionality that is missing from the API? Please describe.
A URL or documentation about the requested functionality. Ex. /firewall_rule.php [...]
Yes. This page describes how to set up scenarios for asymmetric routing. To do that, you need to create 2 firewall rules, check 'Any TCP flag' and sloppy state.

Is your feature request related to a problem? Please describe.
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For asymmetric routing scenarios, these rules are required. I'm doing it manually now.

Describe the solution you'd like
A clear and concise description of what you want to happen.
Being able to create:

• WAN firewall rule with 'Any TCP flag' enabled, and state set to Sloppy.
• A floating firewall rule with 'Any TCP flag' enabled, state set to Sloppy, and quick set to enabled.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
Manual configuration.

Additional context
Add any other context or screenshots about the feature request here.
I guess it is a simple check/uncheck feature.