Detect if Copper Golems hold items via weighted pressure plates

Copper Golems can carry items between copper and regular chests. I suggest expanding this by making them interact with weighted pressure plates based on whether they are holding an item. If a Copper Golem stands on a pressure plate, it should emit a stronger redstone signal when holding an item. This allows redstone systems to detect their state (e.g. carrying or idle). The output could be binary (on/off) or scaled based on item weight class. Enables new redstone mechanics using Golems as mobile triggers. Adds function to their idle state when they carry an undeliverable item. Expands automation possibilities with no disruption to current mechanics.