Add View Column Descriptions

[graza-io]

We currently don't have descriptions for the .inspect command as they're not stored in the database.

[graza-io]

@kaidaguerre as discussed this needs some thought on how we obtain the descriptions to write.

Notes:

• We can fairly easily add descriptions to columns using a similar approach to that used in Steampipe as DuckDB supports COMMENT ON also.
• The above would be done as part of the VIEW creation in AddTableView() (loc: internal/database/tables.go)
• At the point of building the VIEW we do not have access to plugin (currently) - however adding it here seems cumbersome and heavy - especially for a connect command where we may be adding many views across numerous plugins.
• At point of building the VIEW we are using the parquet files to determine the columns.

Thoughts:

• Can we provide the schema definition as metadata during the collection?
  • Where to store this? What format?
• Do we have an alternative approach?