Filter out records to be copied to destination table

[Yashko]

This PR will add optional param filter to the options object.
If this param will contain something, main copy function will not copy all of the records inside in source table, but only records which fits into filter rule.

Example:

dynamodbCopyTable({
  config: awsConfig,
  source: {
    tableName: 'one',
  },
  destination: {
    tableName: 'two',
  },
  filter: {
    sample: 'text',
    temporary: false
  }
}, callback)

[enGMzizo]

I will close this pull request because I will implement this filter / mapping function in the future version.

[enGMzizo]

LSI Provisioned Throughput is not existed