Add support for tsv and gz file submission(Cloud-CV#224)

* Add tsv and gz support for file submissions

* Revert "Add tsv and gz support for file submissions"

This reverts commit a5a7bda.

*  Add tsv and gz support for file submissions

Author: rlee80

src/app/components/challenge/challengesubmissions/challengesubmissions.component.ts

@@ -111,7 +111,7 @@ export class ChallengesubmissionsComponent implements OnInit, AfterViewInit {
   /**
    * Download file types
    */
-  fileTypes = [{ 'name': 'csv' }];
+  fileTypes = [{ 'name': 'csv' }, { 'name': 'tsv' }, { 'name': 'gz' }];
 
   /**
    * Selected file type