Add "Divide by 2" rules

examples/example_06/configuration.json

@@ -0,0 +1,6 @@
+{
+  "num_states": 5,
+  "num_cells": 12,
+  "world_initialisation" : "0 0 1 1 1 1 1 1 1 1 0 0",
+  "rules_file_name": "examples/example_06/rules.json"
+}

examples/example_06/rule.json

@@ -0,0 +1,26 @@
+{
+  "name": "Divide by 2",
+  "num_states": 5,
+  "rules": [
+    {"neighborhood": [5, 0, 0], "next_state": 0},
+    {"neighborhood": [0, 1, 1], "next_state": 2},
+    {"neighborhood": [2, 1, 1], "next_state": 2},
+    {"neighborhood": [2, 2, 1], "next_state": 1},
+    {"neighborhood": [2, 1, 0], "next_state": 3},
+    {"neighborhood": [1, 2, 3], "next_state": 0},
+    {"neighborhood": [1, 0, 3], "next_state": 3},
+    {"neighborhood": [0, 3, 0], "next_state": 0},
+    {"neighborhood": [0, 3, 3], "next_state": 0},
+    {"neighborhood": [3, 0, 3], "next_state": 3},
+    {"neighborhood": [0, 2, 3], "next_state": 4},
+    {"neighborhood": [4, 3, 3], "next_state": 4},
+    {"neighborhood": [4, 3, 0], "next_state": 0},
+    {"neighborhood": [4, 4, 0], "next_state": 1},
+    {"neighborhood": [4, 4, 1], "next_state": 1},
+    {"neighborhood": [0, 4, 1], "next_state": 1},
+    {"neighborhood": [0, 4, 0], "next_state": 1},
+    {"neighborhood": [0, 1, 0], "next_state": 0},
+    {"neighborhood": [2, 1, 3], "next_state": 3},
+    {"neighborhood": [1, 3, 0], "next_state": 0}
+  ]
+}