Show competition name and file name in Resources -> Datasets

@ mention of reviewers`

@Didayolo`

A brief description of the purpose of the changes contained in this PR.

Now users can see :

• Actual file name if available in the table
• Competition name to which this submissions belongs
• Actual file name in the dataset detail title
• Competition name is a clickable link to the competition page

In Resources -> Datasets

In Resources -> Datasets -> Detail

Note for old submissions:

1. Competition name will be empty
2. File name will be dataset name instead of new actual file name for both table and dataset detail title

Issues this PR resolves

#713 -> Interface -> Point 2,3,4

Submission details: in which benchmark make benchmark name clickable link Submission: name it using the filename

Checklist

• Code review by me
• Hand tested by me
• I'm proud of my work
• Code review by reviewer
• Hand tested by reviewer
• CircleCi tests are passing
• Ready to merge