Cleanup in transforms and add projectile.getInteracting() transform (#165)

* Cleanup in transforms and add projectile.getInteracting transform

Move whitespace out of string blocks

Remove unused method from transform.java

Use throws for transform methods, and catch the exceptions in modify()

More whitespace between instructions to improve readability

* Api changes for projectile.getInteracting, mixin for ref

runescape-api/src/main/java/net/runelite/rs/api/RSProjectile.java

@@ -33,6 +33,9 @@ public interface RSProjectile extends RSRenderable, Projectile
 	@Override
 	int getId();
 
+	@Import("interacting")
+	int getRsInteracting();
+
 	@Import("height")
 	@Override
 	int getHeight();