minor, bring back alrts_t objects and a reader

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, provide glod_cc_alrts() and glod_gr_alrts()

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
fix, PEBKAC, actually update the last_pat indicator in glod_rd_alrts()

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

* core/alrt:
  fix, PEBKAC, actually update the last_pat indicator in glod_rd_alrts()
  minor, provide glod_cc_alrts() and glod_gr_alrts()
  minor, bring back alrts_t objects and a reader