Rename Daru::DataTables::DataTable to Daru::View::DataTable

[Prakriti-nith]

Updated specs and renamed Daru::DataTables::DataTable to Daru::View::DataTable.
This PR runs in parallel with #22 in daru-data_tables, so some of the test cases will not work right now.

[coveralls]

Pull Request Test Coverage Report for Build 671

• 4 of 11 (36.36%) changed or added relevant lines in 3 files are covered.
• 89 unchanged lines in 8 files lost coverage.
• Overall coverage increased (+0.7%) to 98.552%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/daru/view/adapters/datatables.rb	1	3	33.33%
spec/table_spec.rb	0	2	0.0%
spec/adapters/datatables_spec.rb	3	6	50.0%

Files with Coverage Reduction	New Missed Lines	%
lib/daru/view.rb	1	98.55%
lib/daru/view/table.rb	1	93.75%
lib/daru/view/adapters/googlecharts/display.rb	2	96.55%
spec/table_spec.rb	4	100.0%
lib/daru/view/adapters/nyaplot/iruby_notebook.rb	4	40.0%
lib/daru/view/adapters/googlecharts.rb	10	91.53%
lib/daru/view/adapters/datatables.rb	11	93.33%
spec/adapters/datatables_spec.rb	56	100.0%

Totals
Change from base Build 660:	0.7%
Covered Lines:	3131
Relevant Lines:	3177

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💛 - Coveralls

[Shekharrajak]

Please finish it as soon as possible.

[Prakriti-nith]

@Shekharrajak I have tried the examples again, I think the PR is fine.

[Shekharrajak]

Is it required?

[Prakriti-nith]

Yes, it is required to run the specs.

[Shekharrajak]

We need to change the folder structure of the daru-data_tables . So another PR has to be created for it.

Merging it for now as temporary solution.

[Shekharrajak]

Refer Shekharrajak/daru-data_tables#24