Add Garage drop-down to Spawn PV menu (#2171)

* Fixed edge case where a garage that contained only banned vehicles would show if the user was using Spawn Clone.
Refactored a large portion of the garage code to be production ready.
Formatting changes.

* Added singular garage items to the m_garage setter like the Terrorbyte.

* Fixed is_blacklisted_vehicle returning an inverted condition.
Fixed Garage drop-down not updating properly.

* Separated out m_garage's setter into a ctor function.
Replaced the 4 singular garages that use an overloaded index with a define to be able to shift them easier when new properties are added.

* Removed obsolete and incorrect player.character_slot config entry.
Removed deprecated local_player.hpp.
Added self::char_slot that is guaranteed to be correct.

* Removed extraneous semi-colon.

* Added more stuff to fillsnacks.
Removed more extraneous usages of MPPLY_LAST_MP_CHAR.

* Added the vehicle's name to player info.

* Fixed get_property_garage_size returning the incorrect size for the facility.
Fixed get_static_property_name returning the Nightclub's name instead of Nightclub Service Entrance to maintain consistency with the Mechanic.
Fixed garage_slot_iterator not starting and ending at the correct indexes.

* Shifted the singular properties down one to compensate for the new math.

* Fixed backwards math on Terrorbyte and Nightclub B1.

* Fixed garage not being updated when the player moved the vehicle.

* Fixed backwards comments.

src/lua/bindings/stats.cpp

@@ -15,9 +15,7 @@ namespace lua::stats
 	// Returns: integer: The current multiplayer character index (0 or 1).
 	static int get_character_index()
 	{
-		int character_index = 0;
-		STATS::STAT_GET_INT(RAGE_JOAAT("MPPLY_LAST_MP_CHAR"), &character_index, -1);
-		return character_index;
+		return self::char_index;
 	}
 
 	static Hash stat_text_to_hash(std::string& text)