Performance testing framework

[dup05]

Summary (Short summary of what is being done) :

Automated Performance testing framework for the pipeline

Description (Describe in detail the fix made) :

The v1 framework supports the following:

• Testing of the DLP Dataflow pipeline in batch/streaming mode with user specified inputs, file formats and pipeline parameters.
• Handling the cleanup of resources created during the tests
• Measuring the performance metrics
• Creating dashboards to visualize and compare the metrics

Bug ID (if any) :

b/313552919

Public Documentation (if any) :

TESTED (Test Cases with scenario and description - must have 1 positive and 1 negative scenario) :

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 16.66667% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 13.35%. Comparing base (9cb90b2) to head (4088505). Report is 6 commits behind head on master.

Files	Patch %	Lines
...gle/swarm/tokenization/beam/DLPDeidentifyText.java	0.00%	3 Missing :warning:
...google/swarm/tokenization/beam/DLPInspectText.java	0.00%	3 Missing :warning:
...gle/swarm/tokenization/beam/DLPReidentifyText.java	0.00%	3 Missing :warning:
...google/swarm/tokenization/common/DLPTransform.java	0.00%	3 Missing :warning:
...enization/parquet/ParquetReaderSplittableDoFn.java	0.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #190 +/- ## ============================================ - Coverage 13.41% 13.35% -0.07% Complexity 67 67 ============================================ Files 53 53 Lines 2519 2531 +12 Branches 213 213 ============================================ Hits 338 338 - Misses 2161 2173 +12 Partials 20 20 ```

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