Immersion tweaks

WATERPROOF now no longer helps if you're in deep water.  In practice,
this nerfs hazmat gear slightly.  However, I don't think it's designed
for swimming, so am not gonna fret about water getting in the seams of
an airtight suit.
Make the delete world option delete worlds indead of reseting them

Fixes #5506
Merge branch 'Waterproofing' of github.com:KA101/Cataclysm-DDA
Print normal header in uimenu
Merge branch 'delete-world' of github.com:fergus-dall/Cataclysm-DDA
Merge pull request #5711 from VlasovVitaly/fix-uimenu-header

Print normal header in uimenu
fix visual bugs related to novice matrial artist
add bottom border to uimenu header
astyle
changed left and right border chars
variable length for some strings; fix for select mode caption.
more fixes
Add a "Control vehicle" menu entry to the examine menu.

I actually wanted to integrate every entry in the vehicle control menu
Inside the examine menu, but that's a lot more of code inside the pickup()
function which should be split in parts.

There are some things that should be cleaned up, the menu should be
in examine() instead of pickup(), for starters.

I kept this simple, it's handy and doesn't change things too much.
Make "let go of controls" the default placing it first in the menu.
Make "stop driving" the second option.
Straight skill parity

Removes the -2 that @swwu mentioned in #5394.  Seems to work more or
less OK: zombie dogs are a serious hazard to a 0-skill character.
Merge branch 'merge_vehicle_controls' of github.com:sduran/Cataclysm-DDA
Merge branch 'inv' of github.com:illi-kun/Cataclysm-DDA
Merge branch 'newchar' of github.com:illi-kun/Cataclysm-DDA
Merge branch 'critter-workups' of github.com:KA101/Cataclysm-DDA