STALKER: Anomalies

Adds 3 anomalies, bolts, and an anomaly detector

1. Gravitational leaves: Getting too close with get you sucked in its gravitational pull, where then the anomaly will explode, causing 19 hearts of damage
2. Gravitational launcher: Sane as gravitational leaves but it swirl the player around and can be escaped, can be used for movement
3. Glass shards: Floating shards of glass that cut the entity, causing poison-like damage

Bolt: can be thrown at anomalies to trigger them

Anonaly detector: Will beep when close to an anomaly

This mod is in early stages, anomalies don't spawn naturally yet and the anomaly detector can't be crafted yet