query: extract templates expect-header and expect-footer
query: extract templates expect-header and expect-footer

The CSV header is still not printed for engine postgre.

Signed-off-by: Jan Viktorin <3eab6ac54c005c4408f608556a6663b7f2abede7@fit.vutbr.cz>

BeeeOn/server,BeeeOn/server,BeeeOn/server,BeeeOn/server