Add ADBC support to dbplyr

[JavOrraca]

I'm not sure if this is more of a {DBI} feature request or a {dbplyr} one, but it'd be great if {dbplyr} could support ADBC. I have been experimenting with ADBC connections to Snowflake using the {adbcdrivermanager} and {adbcsnowflake} packages.

I am working through some bugs but getting promising results in terms of faster querying + collection times from Snowflake data sources with ADBC (vs ODBC). Thanks!

[JavOrraca]

Following up here: A teammate shared this adbi package with me (an Arrow-compliand DBI). Looks very neat, but my understanding is that it does not yet support the Arrow Snowflake Driver extension.