Merging SQLite connector into community edition release

### Component

Connectors c/v3-ndc-sqlite

### Describe the solution you'd like

Currently there does not seem to be an officially supported sqlite connector available in the console ui.

Ideally Hasura would directly support a sqlite connector instead of having to implement the service via an external integration.

The example connector dc-agents/sqlite seems to work fine, but it doesn't seem like it is being updated and tested in the mainline release.

### Describe alternatives you've considered

We are currently running a slightly modified version of the nodejs data-connector hoping that it will one day be rolled into the rest of the core gql-engine.

Start with the c/v3-ndc-sqlite connector and compare it with the dc-agents/sqlite example. Determine what is needed for the connector to be updated, tested in the mainline release, and officially supported in the console UI; done means SQLite support is available without the external integration.

Written by the indexing model from the issue text.