Support Search Optimizations

[ernestoongaro]

Similar to pre 1.2 grants, search optimizations have to be handled by post-hook, so a native configuration would be nice to have.

For long lived tables like incrementals, it's particularly interesting to not add the search optimization service on every incremental, as it appears to force an expensive full re-index of the table (vs the default behaviour that automatically adds to the index).

I wrote a little example of a macro that checks if the service exists before adding it here in case it's useful for someone doing this.