with -smalloc stats:

Split SMA relevant fields into their own MAC_STAT_SMA macros, and make it
possible to include stat_field.h without all MAC_STAT* macrods defined.

Move SMA relevant fields from struct varnish_stats to their own 
varnish_stats_sma.

Teach varnishstat to enumerate fields from a varnish_stats_sma.  (This
code looks like it should/could be much more general, and probably
libvarnisapi candidate).  For now only curses mode updated.

In storage_malloc.c, allocate a shm_alloc for a struct varnish_stats_sma
for each instance (in ->ready(), because we have no shm during arg
processing in ->init(), update the counters therein.




git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4855 d4fa192b-c00b-0410-8231-f00ffab90ce4