MB-13651: Add SUBDOC_CMD_FLAG_MKDIR_P constant
MB-13651: Add SUBDOC_CMD_FLAG_MKDIR_P constant

Change-Id: I5ec7d7ce15777eb0808c26283e5c7c28f968d98d
Reviewed-on: http://review.couchbase.org/50421
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Mark Nunberg <dab05a0fe859c5cb93882b2a75a0d613501b07be@couchbase.com>

mnunberg/subjson,mnunberg/subjson