Add a table to record vCenter DataCenters.
Add a table to record vCenter DataCenters.

Signed-off-by: David Lee <15c338f3b79a63a0d5423e9c6562cd312918fe74@gmail.com>

zstackio/zstack,MaJin1996/zstack,MatheMatrix/zstack,winger007/zstack,zstackorg/zstack,liningone/zstack,MatheMatrix/zstack,zsyzsyhao/zstack,WangXijue/zstack,zxwing/zstack-1,winger007/zstack,HeathHose/zstack,zstackio/zstack,mingjian2049/zstack,Alvin-Lau/zstack,zsyzsyhao/zstack,AlanJager/zstack,camilesing/zstack,mingjian2049/zstack,AlanJager/zstack,WangXijue/zstack,zxwing/zstack-1,liningone/zstack,Alvin-Lau/zstack,zstackio/zstack,Alvin-Lau/zstack,zxwing/zstack-1,hhjuliet/zstack,camilesing/zstack,camilesing/zstack,AlanJager/zstack,hhjuliet/zstack,AlanJinTS/zstack,liningone/zstack,MatheMatrix/zstack,MaJin1996/zstack,AlanJinTS/zstack,HeathHose/zstack,WangXijue/zstack,mingjian2049/zstack,AlanJinTS/zstack,zstackorg/zstack,HeathHose/zstack