Implement a ReIdentify Pipeline

[anantdamle]

Currently the project allows inspection and deidentification of sensitive data in different data sources.
There is a need to reidentify the data for business needs.

Implement a reidentify pipeline that:

1. Uses the same encryption configuration as deidentify pipeline
2. Supports following sources:
   a. BigQuery Table or Query
   b. AVRO file
3. Supports writing output as BigQuery table or AVRO for CSV file
4. Supports emitting only a subset of columns (all columns with subset not provided)