PVP bot

Added

• /pvpbot spawn - now possible without a name, a sequential unique name (e.g., VoidClaw)
• /pvpbot massspawn <count> - spawns several bots at once (1-50)
• /pvpbot fraction attack <faction> <target> - the entire faction attacks the target
• Now the mod works not only on a dedicated server but also in singleplayer

New settings

• retreat - toggle retreat when HP is low
• retreathp - HP percentage for retreat (default 30%)
• autopotion - auto-use of potions
• spear - spear support (disabled due to a possible Carpet bug)

Potions

• Healing potions for low HP (5 tick cooldown)
• Strength, speed, and fire resistance potions when entering combat
• All buffs are applied immediately
• Buffs are refreshed when the effect ends (< 5 sec)

Improvements

• The bot doesn't retreat if there's no food (it fights to the end).
• The bot forgets its target after death/deletion.
• The name generator combines parts of base names.