Update list of intrinsics returned by search tags endpoint

[andreasgerstmayr]

What this PR does:
Update the list of intrinsics returned by the /api/v2/search/tags?scope=intrinsic endpoint.

--- a/before.json
+++ b/after.json
@@ -9,17 +9,22 @@
         "instrumentation:name",
         "instrumentation:version",
         "kind",
+        "link:spanID",
+        "link:traceID",
         "name",
         "rootName",
         "rootServiceName",
         "span:duration",
+        "span:id",
         "span:kind",
         "span:name",
+        "span:parentID",
         "span:status",
         "span:statusMessage",
         "status",
         "statusMessage",
         "trace:duration",
+        "trace:id",
         "trace:rootName",
         "trace:rootService",
         "traceDuration"

Which issue(s) this PR fixes:
Fixes #

Checklist

• Tests updated
• Documentation added
• CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX]

[joe-elliott]

Nice improvement. Thanks Andreas!