scoring: handle scip-ctags kinds (#655)
There are likely more that we are missing. We only briefly looked at
golang, likely other languages are also affected. The regression is
scip-ctags returning different values for kind.
Will follow-up with a more comprehensive workaround until scip-ctags
issues are resolved.
Test Plan: manually tested queries like "test server" against the golang
repo until the test server struct was the top result.
Co-authored-by: Stefan Hengl <stefan@sourcegraph.com>