Add MigrateWithOptions to handle multiple keys and copy/replace

[aidandj]

I wasn't sure the best way to handle adding this. Ideally in a breaking change, but I saw RestoreReplace existed, so this was kind of along those lines.

Happy to rename/re-arrange the interface, just wanted to get something started.

[ndyakov]

Hello @artificial-aidan and thank you for this PR. You were on the right track. Let's rename it to MigrateWithArgs (see

go-redis/search_commands.go

Line 15 in 7b9bd6c

FTAggregateWithArgs(ctx context.Context, index string, query string, options *FTAggregateOptions) *AggregateCmd

for example) and create options struct for the additional options - similar to FTAggregateOptions

And please resolve conflicts.