utils: unify version and help parameters

doc/man/kdig.1in

doc/man/khost.1in

doc/man/knot1to2.1in

doc/man/knotd.8in

doc/man/knsupdate.1in

doc/man_kdig.rst

doc/man_khost.rst

doc/man_knot1to2.rst

doc/man_knotd.rst

doc/man_knsupdate.rst

src/dnssec/utils/keymgr.c

src/dnssec/utils/knsec3hash.c

src/knot/main.c

src/utils/common/params.h

src/utils/kdig/kdig_params.c

src/utils/kdig/kdig_params.h

src/utils/khost/khost_params.c

src/utils/khost/khost_params.h

src/utils/knot1to2/main.c

src/utils/knsupdate/knsupdate_params.c