Add a wallaby config for the unit tests

Author: pimterry

wallaby.js

@@ -0,0 +1,23 @@
+module.exports = (wallaby) => {
+  return {
+    files: [
+      'src/**/*.ts',
+      'test/**/*.ts',
+      '!test/**/*.spec.ts'
+    ],
+    tests: [
+      'test/unit/**/*.spec.ts'
+    ],
+
+    workers: {
+      initial: 1,
+      regular: 1,
+      restart: true
+    },
+
+    testFramework: 'mocha',
+    env: {
+      type: 'node'
+    }
+  };
+};