Review state control of module

There is no matrix to be filled on the WIKI page. As per verification of stateless

• data-export doesn't store any session data - It gets details for running a job from various APIs internal to data-export and few APIs are external

• It does store cache locally before triggering a job, but that is job specific, and cache is expired after a given job. Also each job-execution runs on only one instance. There is no way for it to be split among instances. So it is scalable

• File upload functionality is the only part which is not horizontally scalable at this point. There is already some discussion in
  https://docs.google.com/document/d/1kmafhus497R5UF1D3GxJb3QoJMRPvBdadfolGVkq6G0/edit?pli=1 - to be taken care by the hosting service
  and
  also a POC being checked https://folio-org.atlassian.net/browse/MDEXP-90 in case that is not fruitful.

Conclusion:

• data-export is horizontally scalable if file upload is taken out of picture

Note: There is a WIKI page going to be created to decide the points to check for , we will probably wait until that WIKI page is agreed on by the community to complete this story