================================================================
======================= Device Sub Type Master, ====================
================================================================
 ~/iotPlatform/deviceMaster/deviceSubTypeMaster/list/

 => * populate use * 
  db.EvolveDeviceSubType.aggregate([
    {
        $lookup: {
          from: 'EvolveDeviceType',
          localField: 'EvolveDeviceSubType',
          foreignField: '_id',
          as: 'EvolveDeviceSubType'
        }
      }
    ])
 
 -------------------- End ---------------------------------------