feat: support for ETH PDU session establishment

[tariromukute]

Added IEs to support ETH PDU session establishment.

• Added IEs for EthernetPDUSessionInformation
• Added IEs for EthernetPacketFilter
• Added IEs for MACAddress
• Added IEs for EthernetFilterProperties
• TODO (tech debt) for C-TAG and S-TAG IEs

This will enable development and testing of UPF's ETH PDU session support. The see sample session config below.

- fars:
  - applyAction: Forward
    farID: 1
    forwardingParameters:
      destinationInterface: Core
      networkInstance: core.oai.org
  - applyAction: Forward
    farID: 2
    forwardingParameters:
      destinationInterface: Access
      networkInstance: access.oai.org
      outerHeaderCreation:
        desc: OUTER_HEADER_CREATION_GTPU_UDP_IPV4
        ip: 192.168.71.130
        teid: 1
  pdrs:
  - farID: 1
    outerHeaderRemoval: OUTER_HEADER_GTPU_UDP_IPV4
    pdi:
      localFTEID:
        ip4: 192.168.71.134
        teid: 1
      networkInstance: access.oai.org
      sourceInterface: Access
      ethernetPDUSessionInformation:
        ethI: 1
      ethernetPacketFilter:
        ethernetFilterID: 12
        ethernetFilterProperties:
          bide: 1
        macAddress:
          source: 00:00:5e:00:53:01
          destination: 00:00:5e:00:54:01
          upperSource: 00:00:5e:00:53:09
          upperDestination: 00:00:5e:00:54:09
        ethertype: 0x0800
        sdfFilter:
          flowDescription: 'permit in ip from 0.0.0.0/0 to 0.0.0.0/0'
    pdrID: 1
    precedence: 0
  - farID: 2
    pdi:
      networkInstance: core.oai.org
      sourceInterface: Core
      ueIPAddress:
        ip4: 16.0.0.1
        isDestination: true
    pdrID: 2
    precedence: 0
  seid: 0