create SubtractionSampler

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/SubtractionSampler.java

@@ -0,0 +1,15 @@
+package com.dfsek.terra.addons.noise.samplers.arithmetic;
+
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class SubtractionSampler extends BinaryArithmeticSampler{
+    protected SubtractionSampler(NoiseSampler left, NoiseSampler right) {
+        super(left, right);
+    }
+    
+    @Override
+    public double operate(double left, double right) {
+        return left - right;
+    }
+}