Update Repository with Improved Useability with SAM Template

[forestmvey]

Update repository with latest changes. Repository was missing remote read support that must not have been merged in with the initial commit for this repository. Major improvements towards 1-click deployment are added with this PR including an updated template for SAM deployment.

Description of changes:

• Added ability to set default database and table for connector to avoid mapping database and table labels
  • Avoids label mapping that is not necessary and may add confusion for new users
• Added support for read endpoint requests through connector
  • Missing from repository. Associated logic changes and testing has been added
• Merged SAM templates to one template
  • Simplify deployment by allowing one template to be deployed to cloudformation
• Add 1-click deployment section to DEVELOPER_GUIDE (WIP)
  • Currently WIP, needs minor changes to template and deployment to public s3 bucket with connector
• Added GHA workflow for trufflehog
  • Scans for inappropriate secrets stored in source code
• Updated snappy library to support ARM64
  • Coretex run-time error resolved with updating snappy, Issue: 62
• Added note for testing to be done before contributing to repository with PR under CONTRIBUTING.MD

Validation steps completed:

• Deployed connector to cloudformation using 1-click deployment with configurations set for default database, default table, database labels and table labels

  • Validated successful ingestion from prometheus to timestream database table using default database/table
  • Validated successful ingestion from prometheus to timestream database table using database/table labels
  • Validated successful read requests to database table from prometheus server using default database/table
  • Validated successful read requests to database table from prometheus server using database/table labels

• Validated running connector locally with configurations set for default database, default table, database labels and table labels

  • Validated successful ingestion from prometheus to timestream database table using default database/table
  • Validated successful ingestion from prometheus to timestream database table using database/table labels
  • Validated successful read requests to database table from prometheus server using default database/table
  • Validated successful read requests to database table from prometheus server using database/table labels

• Validated IT tests pass locally

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[sethusrinivasan]

Let us merge these change and test it out