Support AWS RDS MySQL as source

[oeyh]

Is your feature request related to a problem? Please describe.
As a Data Prepper user, I would like to have an rds source to load existing data and stream change events from RDS MySQL databases.

Describe the solution you'd like
For export (loading existing data), we can create a snapshot, export it to S3 and read the data from S3
For stream (streaming change events), we can connect to MySQL's binary log stream to receive change events.

Describe alternatives you've considered (Optional)
Run SQL queries periodically through a JDBC driver to load existing and incremental data from the source database.

Additional context
The feature shares similar ideas with existing dynamodb source and documentdb source.

Tasks

• Project setup, source configurations, skeleton code
• Export implementation - create snapshot and export to S3
• Export implementation- read exported data files in S3
• Stream implementation
• Checkpointing in both export and stream
• Pipeline configuration transformation template
• Support multiple entries in pipeline source (Support multiple sources for a pipeline #406)
• Secrets manager integration
• Secret rotation support
• Add E2E acknowledge support
• Add data type mapping
• Add plugin metrics and aggregate metrics
• Add integration tests