rfctr: Implement SQL V2 Dest Connector

[vangheem]

No description provided.

[ahmetmeleq]

Ingest test passes locally and logs include an UploadStep (indicating the use of v2) 👍

Edit: Example also works

Edit2:

• .
  • When browsing the db which was created with the example, the db is empty.
  • From what I saw this is probably due to the IndexerStep not scanning the files as expected in the input folder.
  • This needs a fix, however it is out of scope for this PR.
• The example folder directed to the example is too big. When the indexer works as expected, it's likely to take >10 minutes. Pointing to one file for the example might be a better choice for all of our examples

[ahmetmeleq]

LGTM,

• the test does obtain a positive number of records inside the database
• there are some todo points discovered that is out of scope for this PR