Throw Slimeballs

Add a funny twist to the gameplay throwing slimeballs and magma cream with unique effects!

• Throw slimeballs and magma cream: Use mcl_mobitems:slimeball and mcl_mobitems:magma_cream as throwable projectiles with new mechanics.
• Slimeballs: Spawn small slimes when impacting on entities or players, creating helpers or chaos around you.
• Magma Cream: Ignites fire where it lands and slides along surfaces instead of bouncing.
• Bounce physics: Projectiles bounce naturally upon hitting surfaces, adding dynamic interactions.