Release 2.0.0

⚠️With the v2 version of Utils, we have made significant changes to the code structure, requiring to do many changes especially in the ItemBuilder methods.

• refactor NumberUtil to log conversion errors and return default values
• add JsonUtils class for JSON array conversion utility
• minor changes/optimization
• add requestConfirmation methods for player command execution confirmation
• add ifEnabled method to HookManager for conditional plugin execution
• handle null world in Location serialization
• marked name variable as deprecated and world as nullable in Region class. if would is null, Region#getBlocks return an empty array list
• add PotionUtils utility class for potion effect management
• refactor to use Lombok's Accessors and remove redundant setter methods