[ADAP-548] Make cluster key sorting optional on table creation

[Slanman3755]

resolves #606
docs dbt-labs/docs.getdbt.com/#

Problem

Creating a table with a cluster key always adds an order by to the create table statement. This is usually not necessary and should be optional.

Solution

Add a new optional config flag for table creation (order_by_cluster_key) that can enable or disable the addition of the order by statement when a cluster key is present.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX

[Slanman3755]

I copied a generic test for this new feature. I may need help making it more practical. There should probably also be a unit test for this change but I did not see any unit tests already in place for the cluster_by config field that I could easily add to.

[Slanman3755]

Still waiting on feedback for this change.