minor, turn make_rotz() into vararg function (optional arg is the OFLAGS param)

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, migrate rotz tools that need write access to 2 param variant of make_rotz()

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'core/rotz' into next

* core/rotz:
  minor, migrate rotz tools that need write access to 2 param variant of make_rotz()
  minor, turn make_rotz() into vararg function (optional arg is the OFLAGS param)
minor, provide edge counter rotz_get_nedges()

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, provide testing tool rotz-test for prefix matches

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, rename rotz-test to rotz-search

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'cmd/search' into next

* cmd/search:
  minor, rename rotz-test to rotz-search
  minor, provide testing tool rotz-test for prefix matches
  minor, provide edge counter rotz_get_nedges()
Merge branch 'next'

* next:
  minor, rename rotz-test to rotz-search
  minor, provide testing tool rotz-test for prefix matches
  minor, provide edge counter rotz_get_nedges()
  minor, migrate rotz tools that need write access to 2 param variant of make_rotz()
  minor, turn make_rotz() into vararg function (optional arg is the OFLAGS param)