Make a query param to change content-disposition from attachment to inline

[whikloj]

JIRA Ticket: https://fedora-repository.atlassian.net/browse/FCREPO-3791 & https://fedora-repository.atlassian.net/browse/FCREPO-1843

What does this Pull Request do?

Adds a query parameter inline, that if set to true will result in the Content-Disposition being set to inline. Otherwise it remains attachment

This is also changed for HEAD requests, mementos and external content.

How should this be tested?

Add a binary to a repository using main.
GET the binary

• Through the HTML UI, see that pressing the "Download Content" button causes a save file dialog
• Through curl see the Content-Disposition: attachment; size=79; creation-date="Wed, 24 Nov 2021 14:52:17 GMT"; modification-date="Wed, 24 Nov 2021 14:52:17 GMT" header

Pull in this PR
GET the binary

• Through the HTML UI you cannot easily see this behaviour but if you go to a binary (which actually takes you to the description), remove /fcr:metadata and add ?inline=true you will immediately gets the content.
• Through curl also add ?inline=true and see the Content-Disposition: inline; size=79; creation-date="Wed, 24 Nov 2021 14:52:17 GMT"; modification-date="Wed, 24 Nov 2021 14:52:17 GMT" header (might have to do a HEAD if you use an image as your binary)

Interested parties

Tag (@ mention) interested parties or, if unsure, @fcrepo/committers

[dbernstein]

Code looks good, builds well, and manual tests work as advertised.