[Feat]Support URSP (User Router Selection Policy) allocated by PCF to UE

[Louis-Anson]

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Issue Description

I would like to test the URSP on the UE, and I need the "DL NAS Transport" with "UE policy container" that sent from PCF to UE through the AMF The URSP is defined in 3GPP TS 24.526

What's the version are you using

Please describe the free5GC version using. If possible, the package, device or emulator description will be very supportive. V3.4.1

Is your feature request related to a problem? Please describe.

A clear and concise description of what the problem might be. For instance, I'm always frustrated when [...]

Describe the solution you'd like

A clear and concise description of what is expected. How can the requested feature be used to approach the problem it's supposed to solve? This feature should be designed in PCF, and it's very convenient if the webui could configure the URSP rules for a UE.

Describe alternatives/workarounds you've considered

A clear and concise description of any alternative solutions or features considering. It will be highly appreciated, if existing workaround knowledge can be shared.

Additional context

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Issue Template Checklist

If willing to resolve an issue by submitting Pull request, please consider the points below.

• [ ] Yes, I have the time but I don't know how to start, I would need guidance.

[HanHongChen]

@Louis-Anson Hi, thank you for asking. We do have included URSP in our future plan but I can't give you specific launch time. Please stay tuned for free5GC.