Add NFData instances for query results
Add NFData instances for query results

This allows us to ensure that query results are strict as we build
them, instead of being lazy and only evaluated when the reply is sent
over the Luxi interface.

Signed-off-by: Iustin Pop <acf83a5274f31a43af6b914614365999469c1a31@google.com>
Reviewed-by: Helga Velroyen <2d0126b1ec6f9ec5cbec4a7012aa14faeaef10f5@google.com>

apyrgio/ganeti,onponomarev/ganeti,yiannist/ganeti,andir/ganeti,apyrgio/snf-ganeti,grnet/snf-ganeti,mbakke/ganeti,apyrgio/snf-ganeti,leshchevds/ganeti,onponomarev/ganeti,dimara/ganeti,andir/ganeti,grnet/snf-ganeti,ganeti/ganeti,yiannist/ganeti,mbakke/ganeti,andir/ganeti,ganeti-github-testing/ganeti-test-1,mbakke/ganeti,apyrgio/ganeti,bitemyapp/ganeti,bitemyapp/ganeti,leshchevds/ganeti,ganeti/ganeti,yiannist/ganeti,dimara/ganeti,ganeti-github-testing/ganeti-test-1,ganeti/ganeti,leshchevds/ganeti