add hotel roof, extra floors

[curstwist]

Summary

SUMMARY: Content "Adds roof to hotel and makes them 4 stories tall."

Purpose of change

continues roof project.

Describe the solution

Added 3 more floors worth of rooms and a roof to the hotels. I added the extra floors because they should generally be multi-story compared to a motel.

I also adjusted car alignments in the parking lots and added a few more vehicle spawns.

Describe alternatives you've considered

Could easily keep fixing up the interior of the hotels but these were enough changes for a PR. I may come back to it later, or let someone else continue with the improvements.

It could use improvements to floors, landscape and the lobby and basement areas.

Testing

Spawned in world to check additions and changes.

Additional context

Many of these use the same map, so I've concentrated screenshots on the areas that differ.

hotel 1, ground:

hotel 1, 2nd floor:

all hotels floors 3 & 4:

all hotels roof:

all hotels basement:

hotel 2 variations:

hotel 3 variations:

[RDru]

On loading a save I'm getting:

DEBUG    : JSON contains circular dependency.  Discarded 1 objects:
{
   "type": "overmap_terrain",
   "id": "hotel_tower_1_5",
   "copy-from": "hotel_tower_1_5",
   "name": "hotel entrance",
   "sym": "H",
   "color": "i_light_green"
 },

FUNCTION : void DynamicDataLoader::load_deferred(DynamicDataLoader::deferred_json&)
FILE     : src/init.cpp
LINE     : 133

then I got this once:

DEBUG    : Loaded bad ter!  ter hotel_tower_1_5_east

FUNCTION : void overmap::unserialize(std::istream&)
FILE     : src/savegame.cpp
LINE     : 925

[ZhilkinSerg]

You are probably using alt map key mod that needs to be updated.

[RDru]

removing the mod got rid of first error
but second one is still there - it removes the center of existing hotel