Convert to new CodeQL suppression syntax

[tracyboehrer]

Search for "lgtm"

An example is:

            // we use All so that we get typed roundtrip out of storage, but we don't use validation because we don't know what types are valid
            TypeNameHandling = TypeNameHandling.All, // lgtm [cs/unsafe-type-name-handling]

Replace with: //CODEQL [{id} {reason}

            TypeNameHandling = TypeNameHandling.All, // CODEQL [cs/unsafe-type-name-handling] we use All so that we get typed roundtrip out of storage, but we don't use validation because we don't know what types are valid

If you don't know the "reason" I can comment on the PR for the correct value.