sp_Blitz: if optimized locking is enabled, warn if RCSI is not enabled

[BrentOzar]

Is your feature request related to a problem? Please describe.
SQL Server 2025's new optimized locking performs better if RCSI is on: https://learn.microsoft.com/en-us/sql/relational-databases/performance/optimized-locking?view=sql-server-ver17#best-practices-with-optimized-locking

Describe the solution you'd like
If OL = enabled on a database, warn if RCSI is not.

Are you ready to build the code for the feature?
Yep