SDKS-4828: Add legacy data models and migration steps for authenticator data

[vibhorgoswami]

JIRA Ticket

SDKS-4828

Description

Add a JSON-based approach with mechanisms containing nested account data (1-to-1 mapping) and migrates TOTP/HOTP credentials and Push credentials

[codecov]

Codecov Report

❌ Patch coverage is 0% with 574 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.29%. Comparing base (74b0a2f) to head (9dccd96).

Files with missing lines	Patch %	Lines
...ty/auth/migration/LegacyAuthenticatorRepository.kt	0.00%	368 Missing ⚠️
...tity/auth/migration/AuthenticatorMigrationSteps.kt	0.00%	70 Missing ⚠️
...pingidentity/auth/migration/LegacyDataConverter.kt	0.00%	54 Missing ⚠️
...om/pingidentity/auth/migration/LegacyDataModels.kt	0.00%	47 Missing ⚠️
...n/com/pingidentity/auth/migration/AuthMigration.kt	0.00%	35 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop     #169      +/-   ##
=============================================
- Coverage      44.92%   43.29%   -1.63%     
  Complexity      1232     1232              
=============================================
  Files            302      304       +2     
  Lines           9389     9742     +353     
  Branches        1352     1463     +111     
=============================================
  Hits            4218     4218              
- Misses          4630     4983     +353     
  Partials         541      541              

Flag	Coverage Δ
integration-tests	24.96% <0.00%> (-1.03%)	⬇️
unit-tests	25.24% <0.00%> (-0.98%)	⬇️

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