refactored file report approval tests
HtmlReportViewModel renamed to HtmlReportModel
restructured the classic & metro html reports
changed metro report to be generated in code instead of T4
Added example table support to metro html report
Approval test for metro html report /w examples
small changes on html reports' styling
Merge pull request #112 from MehdiK/example-on-metro-report

Adding support for examples to metro report