Problem section in Preprocess

[kripanshu]

Current work is given by @vjdorazio
The problem section needs to be added by the user to the preprocess file.

• The API to add problem section/ update problem section.
• The versioning done according to user

Sample request to API
{ "preprocessId":1, "version":1, "problems":{ "problem1":{ "description":{"problem_id":"problem1","system":"auto","meaningful":"no","target":"Hits","predictors":["At_bats","Runs","Doubles"],"transform":0,"subsetObs":0,"subsetFeats":0,"task":"regression","rating":3,"description":"Hits is predicted by At_bats and Runs and Doubles","metric":"meanSquaredError"}, "results":{} }, "problem2":{ "description":{"problem_id":"problem2","system":"auto","meaningful":"no","target":"Triple","predictors":["At_bats","Runs","Doubles"],"transform":0,"subsetObs":0,"subsetFeats":0,"task":"regression","rating":3,"description":"Triples is predicted by At_bats and Runs and Doubles","metric":"meanSquaredError"}, "results":{} } } }

[kripanshu]

@vjdorazio I have written the API to perform the problem section input.
You can check by cloning problems-section branch