Feature: skip responses option for the JSON reporter

[jimc404]

Fixes #1510

What does this PR do?

This implements the --reporter-json-skip-responses in the JSON reporter (and consequently skipResponses key when using the library). The primary aim is to reduce the huge files size that JSON reporter causes by dumping the response body into the JSON report.

Implementation

In the JSON reporter, if the related key was present then a deepClone of the run summary is made with lodash and response body is removed from that object. The resulting object was sent to be written into the exported file.

Testing

As there wasn't much testing being done for the JSON reporter I created 2 files in the test directory namely test/cli/json-reporter-response.test.js and test/library/json-reporter-responses.test.js. They test the JSON reporter with and without the skip responses option passed.

[codecov[bot]]

Codecov Report

Merging #2277 into develop will increase coverage by 0.05%. The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop    #2277      +/-   ##
===========================================
+ Coverage    90.28%   90.33%   +0.05%     
===========================================
  Files           26       26              
  Lines         1266     1273       +7     
  Branches       350      351       +1     
===========================================
+ Hits          1143     1150       +7     
  Misses         123      123              

Flag	Coverage Δ
#cli	83.56% <100.00%> (+0.10%)	:arrow_up:
#integration	51.93% <0.00%> (-0.34%)	:arrow_down:
#library	67.75% <100.00%> (+0.22%)	:arrow_up:
#unit	76.14% <42.85%> (-0.22%)	:arrow_down:

Impacted Files	Coverage Δ
lib/reporters/json/index.js	100.00% <100.00%> (ø)

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[prakashn27]

May I know which package this change will be available in?