merge code from sonic master

'show vlan config' is not displaying the VLAN members, after the clea…

Merge code from SONIC master branch

It isn't necessary in the current system, just delete it

Add the speed column. The cmd to show interface status as:

root@switch1:~# show interface status             
  Interface            Lanes    Speed    MTU         Alias    Oper    Admin    Type    Asym PFC
-----------  ---------------  -------  -----  ------------  ------  -------  ------  ----------
  Ethernet0                8      25G   9100   Ethernet1/1      up       up     SFP         N/A
  Ethernet1                9      25G   9100   Ethernet2/1      up       up     SFP         N/A
  Ethernet2               10      25G   9100   Ethernet3/1    down     down     N/A         N/A
  Ethernet3               11      25G   9100   Ethernet4/1    down     down     N/A         N/A
  Ethernet4               12      25G   9100   Ethernet5/1    down     down     N/A         N/A
  Ethernet5               13      25G   9100   Ethernet6/1    down     down     N/A         N/A
  Ethernet6               14      25G   9100   Ethernet7/1    down     down     N/A         N/A
  Ethernet7               15      25G   9100   Ethernet8/1    down     down     N/A         N/A
  Ethernet8               16      25G   9100   Ethernet9/1    down     down     N/A         N/A
  Ethernet9               17      25G   9100  Ethernet10/1    down     down     N/A         N/A
 Ethernet10               18      25G   9100  Ethernet11/1    down     down     N/A         N/A
 Ethernet11               19      25G   9100  Ethernet12/1    down     down     N/A         N/A
 Ethernet12               20      25G   9100  Ethernet13/1    down     down     N/A         N/A
 Ethernet13               21      25G   9100  Ethernet14/1    down     down     N/A         N/A
 Ethernet14               22      25G   9100  Ethernet15/1    down     down     N/A         N/A
 Ethernet15               23      25G   9100  Ethernet16/1    down     down     N/A         N/A
 Ethernet16               32      25G   9100  Ethernet17/1    down     down     N/A         N/A
 Ethernet17               33      25G   9100  Ethernet18/1    down     down     N/A         N/A
 Ethernet18               34      25G   9100  Ethernet19/1    down     down     N/A         N/A
 Ethernet19               35      25G   9100  Ethernet20/1    down     down     N/A         N/A
 Ethernet20               40      25G   9100  Ethernet21/1    down     down     N/A         N/A
 Ethernet21               41      25G   9100  Ethernet22/1    down     down     N/A         N/A
 Ethernet22               42      25G   9100  Ethernet23/1    down     down     N/A         N/A
 Ethernet23               43      25G   9100  Ethernet24/1    down     down     N/A         N/A
 Ethernet24               48      25G   9100  Ethernet25/1    down     down     N/A         N/A
 Ethernet25               49      25G   9100  Ethernet26/1    down     down     N/A         N/A
 Ethernet26               50      25G   9100  Ethernet27/1    down     down     N/A         N/A
 Ethernet27               51      25G   9100  Ethernet28/1    down     down     N/A         N/A
 Ethernet28               56      25G   9100  Ethernet29/1    down     down     N/A         N/A
 Ethernet29               57      25G   9100  Ethernet30/1    down     down     N/A         N/A
 Ethernet30               58      25G   9100  Ethernet31/1    down     down     N/A         N/A
 Ethernet31               59      25G   9100  Ethernet32/1    down     down     N/A         N/A
 Ethernet32               64      25G   9100  Ethernet33/1    down     down     N/A         N/A
 Ethernet33               65      25G   9100  Ethernet34/1    down     down     N/A         N/A
 Ethernet34               66      25G   9100  Ethernet35/1    down     down     N/A         N/A
 Ethernet35               67      25G   9100  Ethernet36/1    down     down     N/A         N/A
 Ethernet36               68      25G   9100  Ethernet37/1    down     down     N/A         N/A
 Ethernet37               69      25G   9100  Ethernet38/1    down     down     N/A         N/A
 Ethernet38               70      25G   9100  Ethernet39/1    down     down     N/A         N/A
 Ethernet39               71      25G   9100  Ethernet40/1    down     down     N/A         N/A
 Ethernet40               72      25G   9100  Ethernet41/1    down     down     N/A         N/A
 Ethernet41               73      25G   9100  Ethernet42/1    down     down     N/A         N/A
 Ethernet42               74      25G   9100  Ethernet43/1    down     down     N/A         N/A
 Ethernet43               75      25G   9100  Ethernet44/1    down     down     N/A         N/A
 Ethernet44               76      25G   9100  Ethernet45/1    down     down     N/A         N/A
 Ethernet45               77      25G   9100  Ethernet46/1    down     down     N/A         N/A
 Ethernet46               78      25G   9100  Ethernet47/1    down     down     N/A         N/A
 Ethernet47               79      25G   9100  Ethernet48/1    down     down     N/A         N/A
 Ethernet48      84,85,86,87     100G   9100  Ethernet49/1      up       up  QSFP28         N/A
 Ethernet49      80,81,82,83     100G   9100  Ethernet50/1      up       up  QSFP28         N/A
 Ethernet50      92,93,94,95     100G   9100  Ethernet51/1    down     down     N/A         N/A
 Ethernet51      88,89,90,91     100G   9100  Ethernet52/1    down     down     N/A         N/A
 Ethernet52  108,109,110,111     100G   9100  Ethernet53/1    down     down     N/A         N/A
 Ethernet53  104,105,106,107     100G   9100  Ethernet54/1    down     down     N/A         N/A
 Ethernet54  116,117,118,119     100G   9100  Ethernet55/1    down     down     N/A         N/A
 Ethernet55  112,113,114,115     100G   9100  Ethernet56/1    down     down     N/A         N/A
root@switch1:~#