ability to set content type to be customizable for a source. aka ask for only application/ld+json, or a profile

[valentinedwv]

gleaner/internal/summoner/acquire/acquire.go

Line 149 in c1e91af

req.Header.Set("Accept", "application/ld+json, text/html")

If text/html is in the list of accept, opencoredata sends html.
So option in a source to force a specific overidden content type.

and/or options to ignore the file extenstion...

gleaner/internal/summoner/acquire/acquire.go

Line 228 in c1e91af

if contains(contentTypeHeader, JSONContentType) || contains(contentTypeHeader, "application/json") || fileExtensionIsJson(urlloc) {

or better logic...