Backport dbt show enhancements into 1.5.latest

[aranke]

resolves #

Description

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[jtcohen6]

Let's not merge this until we've resolved the breaking change for dbt-bigquery and other adapters, described in #7545 (comment)

Update: Given that this is a breaking (?) change for the adapter execute method, I don't think we can backport this for inclusion in 1.5.latest. We can include the change in v1.6 with early callout in the docs migration guide. Is there any non-breaking way that we could look to get this working for v1.5?

[aranke]

@jtcohen6 Fixed, I think this should be good to merge now?

Already included in branch: print model version numbers
Included in PR: show with seed, inject SQL header into query
Excluded: limit in execute