oracle adapter support

[vinodsugur]

Added Oracle adapter support

Description & motivation

Checklist

• I have verified that these changes work locally on the following warehouses (Note: it's okay if you do not have access to all warehouses, this helps us understand what has been covered):
  • Postgres
  • BigQuery
  • Snowflake
  • Redshift
  • SQL Server
  • Databricks
  • Oracle
• I have written tests for new macros (either as dbt schema tests in integration_tests/models, dbt data tests in integration_tests/tests or integration tests in the CI workflow)
• I have updated the README.md (if applicable)

[stumelius]

Thank you for opening this PR @vinodsugur, and sorry for the delay in getting to review this. Oracle support would definitely be a nice-to-have feature. The code in general looks good and I left a few comments. Can you address those? Can you also make sure that Oracle gets added to the supported adapters list in the README?

[vinodsugur]

I have resolved open queries. Please review.

[vinodsugur]

Thank you for opening this PR @vinodsugur, and sorry for the delay in getting to review this. Oracle support would definitely be a nice-to-have feature. The code in general looks good and I left a few comments. Can you address those? Can you also make sure that Oracle gets added to the supported adapters list in the README?

[vinodsugur]

I have closed on all open points.