monsters that are piled up combine strength(*) to bash things
*: only the primary basher (mob right infront of door) benefits
*: only monsters directly behind the primary basher add 100% str, others add 50%
*: this pools monsters up to 5 tiles behind the primary, and up to 1 tile on either side
ex: P: primary (100% str=2), 2: helper (100% str=2), 1: helper (50% str=2), 0: disqualified monster, -: wall, +: door
.0210
.021.
--21.
01P1.
--+--
.....
total = 13; 2 + (2*3) + (1*5)
//nitpickery-be-gone
Revert accidental merge of unrelated not-ready-for-pr branch

This reverts commit af357efcdd052d8340c6fa87fde21d0204da9782.
fixorcomment
FOODCO kitchen buddy first part
Merge remote-tracking branch 'origin/master' into jsonbash
map::has_adjacent_furniture checks new "BLOCKSDOOR" flag on furn_t, instead of using
a great big if or or or or or or or statement
monster::bash_at:
* fix typo that doubled the strength of helpers.
* fix typo that made mobs shoulder to shoulder to main basher contribute 100%
 str. Now (as stated) only mobs BEHIND the main basher add 100% bash strength.
furniture.json: add BLOCKSDOOR flag to furnitures that were hardcoded into old
map::has_adjacent_furniture if statement
terrain.json: boost minimum strength levels for doors walls and fences, in light
of new bash pileup logic. A standard door will hold off 2 zeds, 3 if boarded or blocked,
4 if boarded and blocked.
Boost pallaside gate min str to match door. Admittedly I can't tell if
they're actually sturdier or not, but max str is more so...
Additional furniture door blocking: oven, washer, dryer, bathtub, sofa, dumpster.
Modification according to #2946
modification of advanced inventory
restore ()
restore ()
more roofs for cube van, hippie van, and ambulance
Lab notes no longer change each time you use a computer.
Remove quotations from kitchen buddy description

Apparently putting quotations in an item description is a no-no.
weight and volume rebalance of welding rig and kitchen buddy

I originally took the weight and volume of these items from the kitchen
unit.  After comparing some of the values on these to what the totals
for the parts themselves are, I've come to the conclusion the values on
the kitchen unit are completely insane.  Rebalancing the stuff I made to
more reflect reality, and may adjust kitchen unit in a seperate PR.