Added webpack command

[hnzlmnn]

Added the ability to unpack webpack bundles into source directory. Could be implementing #11. For now, I created an argument switch to enable the feature as I only tested with a handful of webpack bundles.

[lgtm-com]

This pull request introduces 1 alert when merging 84fdd74 into f0dbf72 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[paazmaya]

Hi, Thank you for the contribution.

How about test cases, can you add those with fixtures?

Also, please "sign-off" the commits, in order to mark the contibution as a contribution. The DCO checks for that.

[codecov]

Codecov Report

Merging #31 into master will decrease coverage by 0.82%.
The diff coverage is 84.61%.

@@            Coverage Diff             @@
##           master      #31      +/-   ##
==========================================
- Coverage   90.19%   89.37%   -0.83%     
==========================================
  Files           6        6              
  Lines         153      160       +7     
==========================================
+ Hits          138      143       +5     
- Misses         15       17       +2

Impacted Files	Coverage Δ
bin/shuji.js	83.33% <ø> (ø)	⬆️
index.js	100% <ø> (ø)	⬆️
lib/read-sources.js	92% <84.61%> (-8%)	⬇️

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[paazmaya]

@hnzlmnn hi, sorry for not coming back to this faster, but the test cases are still missing in this PR, please add example files as fixtures and resulting files as expected, than assert between them.