Avoid re-creating __spark_conf__5678XXXX.zip in /tmp for each application submit and copy under application specific .staging directory

[Bhatta, Ramesha]

Hello,

I have created an enhancement request describing details in the 
https://issues.apache.org/jira/browse/SPARK-33864.

Kindly check and vote for this enhancement and/or provide your 
insight/suggestions.

Regards,
-Ramesh