Update 0.2.7

- Added a laboratory table for obtaining potions

- Potions are obtained by mixing the remains of dropped from mobs

- When using potions, they impose various effects on characters

- Effects can affect different parameters of characters: health, energy, movement speed, action speed, melee strength, ranged strength, defense, melee speed, ranged speed

- The duration of the effect also depends on the ingredients being mixed

- When using a potion with effects that are already on the character, these effects are not applied