Port QoS slope policy commands

config
    - port
    - no port
        - access 
            - egress 
                - [no] pool [name]
                    -  slope-policy name
                    -  no slope-policy 
            - uplink 
                - egress 
                    - [no] pool [name]
                        -  slope-policy name
                        -  no slope-policy 
        - network 
            - egress 
                - [no] pool [name]
                    -  slope-policy name
                    -  no slope-policy