Add tests and fix validators

brainfuck.json

@@ -0,0 +1,42 @@
+{
+  "unicode": true,
+  "memory_cells": 30000,
+  "load_dump": "data_in.bin",
+  "save_dump": "data_out.bin",
+  "sources": [
+    "example/hw.bf"
+  ],
+  "compiled": "bin/hw.bfc",
+  "lint": [
+    {
+      "name": "brackets",
+      "level": "error",
+      "expected": "=1"
+    },
+    {
+      "name": "operators",
+      "level": "warning",
+      "expected": "=1"
+    },
+    {
+      "name": "loop_depth",
+      "level": "warning",
+      "expected": "<=100"
+    },
+    {
+      "name": "loop_depth",
+      "level": "error",
+      "expected": "<=255"
+    },
+    {
+      "name": "pointer_balance",
+      "level": "error",
+      "expected": "<0"
+    },
+    {
+      "name": "pointer_balance",
+      "level": "warning",
+      "expected": ">30000"
+    }
+  ]
+}