Clean repo for open source release

Remove build artifacts, dev tool configs, unused dependencies,
and third-party source dumps. Add proper README, update .gitignore,
clean up Makefile.

src/main/java/com/tiedup/remake/dispenser/RopeArrowDispenseBehavior.java

@@ -0,0 +1,32 @@
+package com.tiedup.remake.dispenser;
+
+import com.tiedup.remake.entities.EntityRopeArrow;
+import net.minecraft.core.Position;
+import net.minecraft.core.dispenser.AbstractProjectileDispenseBehavior;
+import net.minecraft.world.entity.projectile.Projectile;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.Level;
+
+/**
+ * Dispenser behavior for shooting rope arrows.
+ *
+ * Based on original BehaviorDispenserRopeArrow from 1.12.2
+ */
+public class RopeArrowDispenseBehavior
+    extends AbstractProjectileDispenseBehavior
+{
+
+    @Override
+    protected Projectile getProjectile(
+        Level level,
+        Position position,
+        ItemStack stack
+    ) {
+        return new EntityRopeArrow(
+            level,
+            position.x(),
+            position.y(),
+            position.z()
+        );
+    }
+}