Build using dependencies in JSON view

[lijunle]

/cc @gtanner

• Build using dependencies in JSON view
• This does not affect the CLI common output
• Update the unit test and spec.
• Close added an option to report on used dependencies #91

[codecov-io]

Current coverage is 98.25%

Merging #94 into master will not affect coverage as of e5c21dd

@@            master     #94   diff @@
======================================
  Files           15      15       
  Stmts          343     343       
  Branches        80      80       
  Methods          0       0       
======================================
  Hit            337     337       
  Partial          4       4       
  Missed           2       2       

Review entire Coverage Diff as of e5c21dd

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