NIFI-10966: Add option to QuerySalesforceObject to run custom query

[Lehel44]

Summary

NIFI-10966

• Query Type property added: Query Parameters (original behavior), Custom Query
• Since we cannot define a schema for custom objects and inferring can be slow, in case of Custom Query mode record processing is not supported

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[pvillard31]

Hi - I've been playing with this and it works as expected (except that SOQL is super hard to understand...). One improvement I'd like to see is that the processor should accept input relationships (optional - a bit like ExecuteSQL) and the custom SOQL query should be able to reference flow file attributes. This would give me the option to potentially chain multiple instances together in a flow definition.

[pvillard31]

I've been playing with the latest version and this is working as expected. I'm a +1 from a feature usage point of view.

[tpalfy]

LGTM
Thank you for your work @Lehel44 and your review @pvillard31 !
Merged into main.