Realistic Mode

Added 4 new features and 2 updates

New features:

1. Realistic human weather response
2. If you wear non-full set of leather armor when traveling in the snow biome, you will feel cold
   
   1. If you wear full set of leather armor when traveling in the desert biome, you will feel hot
   2. It is crucial to wear the leather hat all the time to not feel the heat
3. Eating raw food will cause a poison effect to the player
4. Cannot break the block that are farther than around 1 meter (1 block)
   
   1. The more you break the block, the more you will become stronger (16 block per haste)

Updates:

1. The sadness mode are now changed from death to the extreme slowness and mining fatigue
2. Happiness scoring change
   
   1. Eat a golden apple = +10 happiness
   2. Eat an enchanted golden apple = +20 happiness
   3. Find a diamond = +12 happiness

Balance update:

1. When the player respawn, they will receive the fire protection for 5 minutes in case they spawn on the desert biome. The reason I added this balance update is because if the new player spawn on the desert area, they might have no chance to survive if they do not manage to find the new biome.