Add usid mode

[Motok1]

Description

• Add SRv6 uSID mode operations to polad

When usid-mode true, polad performs usid operations.

global:
  pcep:
    address: "2001:0db8::254"
    port: 4189
<snip>
  ted:
    enable: false
  usid-mode: true

• Add the option to add sid-structure and Nai information to the "pola sr-policy add" command input file

srPolicy:
  pcepSessionAddr: "2001:0db8::1"
  srcAddr: "2001:0db8::1"
  dstAddr: "2001:0db8::2"
  name: "policy-name"
  color: 100
  segmentList:
    - sid: "2001:0db8:1005::"
      localAddr: "2001:0db8::5"
      sidStructure: "32,16,0,80"
    - sid: "2001:0db8:1006::"
      localAddr: "2001:0db8::6"
      sidStructure: "32,16,0,80"
    - sid: "2001:0db8:1005::"
      localAddr: "2001:0db8::5"
      sidStructure: "32,16,0,80"
    - sid: "2001:0db8:1006::"
      localAddr: "2001:0db8::6"
      sidStructure: "32,16,0,80"

Type of change

• [x] New features
• [x] Bug fixes

How is This Tested?

• Local SRv6 with uSID network

Other Information