Fetch: ensure consistency between response, done-chan, and cache state.
This ensures that when a cached response is not used because it requires revalidation, the done chan is set back to `None`(since the cache might have set it to `Some` when constructing the response requiring revalidation).
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Remove wpt tests for domainLookupStart
Set ResourceAttribute::DomainLookupTime
Move DomainLookupStart timing before HTTP request initialization
Change label of domainLookupStart TAO zero test to PASS
Adjust the from_resource_timing method to initialize domain_lookup_start value
Restore domainLookupsStart test
Various improvements and update to the http cache
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Add referrer to navigation fetch request
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Implement step 13 of [following hyperlinks](https://html.spec.whatwg.org/#following-hyperlinks-2) and step 14.3 of [window open](https://html.spec.whatwg.org/#window-open-steps), as well as other referrer- and fetch-related updates.
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Added fetch_start functionality
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Added the fetch_start functionality in http_loader.rs (http_fetch function)
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Fix DuckDuckGo HTML search
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refactoring with ResourceFetchMetadata
implemented deprecated window.timing functionality
created ResourceTimingListener trait
fixed w3c links in navigation timing
updated include.ini to run resource timing tests on ci
