Added new function body_part_name_accusative()
This function is similar as body_part_name() but
returns bodypart name with with gettext context.
Some messages changed to suppert new bodypart's names. Added gettext comments
Fixed same strings in in values
Translation template update
Not related to PR but very very small missspelling fix
revert 41ed856
Fixes some clunky grammar in Hoss' description.
Merge pull request #8333 from Rivet-the-Zombie/Hoss-fix

Fixes some clunky grammar in Hoss' description.
Refactor how monster death are handled:

Remove game::kill_mon and move game::explode_mon into monster class.
Replace calls to game::kill_mon with either monster::die.
Remove calls to game::kill_mon when the previous monster::hurt returned true. That indicated that the damage to the monster actually killed it.
This is now done directly in monster::hurt. Note that not all calls to monster::hurt actually checked the return value.
Replace game::explode_mon with either monster::hurt(9999) - huge damage to trigger the exploding, or direct calls to monster::explode.
monster::explode can also be called on dead monsters!

Merged both monster::die functions into the single function that is defined in Creature.

Added source creature parameter to monster::hurt.

Explode-on-overkill is now done in monster::hurt.
Make monster::dead private and add is_dead function.

monster::die is now called exactly once, further calls are ignored.
monster::dead is only set to true in that function.
*all* effects of a dying monster are handled in monster::die.

Added a function to class game to increase the kill counter.

game::cleanup_dead now only removes the monster object from the creature tracker, nothing more.

ranged.cpp: use monster::pos(), which already returns a point.

Note on the removal of the is-dead check: game::mon_at / Creature_tracker::mon_at never return the index of a dead monster, so returned index is always for a living monster, so the check is not required.
game::zombie() / Creature_tracker::find still return a dead monster.

The correction of game::last_target is now in game::remove_zombie so it is always corrected (remove_zombie is called from other code as well, not just from game::cleanup_dead).
Combine code from butchering and monster exploding

Both places create chunks of the "monster body", in other words chunks of flesh/plant matter.
The logic that determines the item type is now in mtype and not replicated in both functions.
Fix killer parameter of killed zlave.

Thanks to @HuXTUS