Feature/file upload page boilerplate

[g-saracca]

What this PR does / why we need it:

Set up the boilerplate for the file upload page,

• Breadcrumbs
• Navigation (from dataset page "Upload Files" and Edit Dataset > Files (Upload) buttons)
• Page not found if the dataset is not found

Which issue(s) this PR closes:

• Closes Create the boilerplate of the file upload page #365

Special notes for your reviewer:

Breadcrumbs need more work on a separate issue, they work for dvObject hierarchy: collection, dataset, file; but we need to think on how to make it work for actions items like: Root > Dataset > Edit Files
Created issue for this metioned above : #380

Suggestions on how to test this:

• Log in and navigate to a dataset, test clicking both buttons mentioned above that take you to the Edit Dataset Files page.
• Also change some character of the persistent ID query param in the url and reload the page, Not Found page should be shown.
• Same Not Found page should be shown if going directly to that page without been authenticated.

Does this PR introduce a user interface change? If mockups are available, please link/include them here:

Yes

Is there a release notes update needed for this change?:

Additional documentation:

• Unblocks issue Add File Upload Page UI components #366

[ekraffmiller]

Looks good! I just had a question about how we are going to handle the different Edit Actions, see my comment

[coveralls]

coverage: 97.333% (-0.2%) from 97.495%
when pulling 29a3023 on feature/file-upload-page-boilerplate
into 620e31b on develop.

[g-saracca]

Requested changes applied + component test + interface extension of DropdownButtonItem

[ekraffmiller]

LGTM!

[GPortas]

Looks and works good!

testfileboilerplate.mov