Passing status code, options to Response() constructor

[palashkaria]

Added a new field to KakapoResponse, options, which is being passed on the window.Response(body, options). It can have statusText, status (codes), and headers, and currently we are only passing headers.

see #144 for a detailed explanation on why I suggest we do this, & another idea to being the fetchInterceptor behaviour closer to window.fetch

[codecov-io]

Codecov Report

Merging #143 into master will not change coverage. The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #143   +/-   ##
=======================================
  Coverage   98.48%   98.48%           
=======================================
  Files          21       21           
  Lines         791      791           
=======================================
  Hits          779      779           
  Misses         12       12

Impacted Files	Coverage Δ
src/interceptors/fetchInterceptor.js	100% <100%> (ø)	:arrow_up:

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[zzarcon]

Looks good to me, can you please add tests for it? afterwards I will more than happy to merge