Issue#9020 - Use consistent namespaces for overlays

contrib/slapd-modules/autogroup/autogroup.c

contrib/slapd-modules/autogroup/slapo-autogroup.5

doc/man/man5/slapo-dyngroup.5

doc/man/man5/slapo-dynlist.5

doc/man/man5/slapo-memberof.5

servers/slapd/overlays/autoca.c

servers/slapd/overlays/dyngroup.c

servers/slapd/overlays/dynlist.c

servers/slapd/overlays/memberof.c

tests/data/regressions/its8444/slapd-provider1.ldif

tests/data/regressions/its8444/slapd-provider2.ldif

tests/data/regressions/its8444/slapd-provider3.ldif

tests/data/regressions/its8444/slapd-provider4.ldif

tests/data/regressions/its8663/its8663

tests/scripts/test044-dynlist

tests/scripts/test052-memberof

tests/scripts/test057-memberof-refint

tests/scripts/test066-autoca