Fixed save corruption issue

Fixed bugs and few minor improvments

Major improvements:
- Burning characters are also works as a temporary torches (affects on light mechanic)

Minor Improvements:
- If you have characters in reserve, after teamwipe you will get control over one of reserve'd characters in camp with teleportation of your core character's corpse (if you had one in party) to hub location.
- Added stairs for platforms on arena
- Small rework of moral mechanics. Bit harder to gain moral and easier to lose one.
- Added starting gold for party.
- Added the function of transferring all the things of the reserve character to the player
- Added loremaster ability and repairing ability for traders

Fixed bugs:
- After death of your core character in adventure, when returning to hub corpse will be teleported with your party
- Every food item now adds food points (haven't worked for fish, vegitables and etc)
- Fixed provision description
- Fixed bug of hunger, tired and light statuses on saveload