add package json file for theme

theme/package.json

+{
+    "name": "template",
+    "version": "0.0.1",
+    "private": true,
+    "devDependencies": {
+      "grunt": "~0.4.1",
+      "grunt-coffeelint": "0.0.7",
+      "grunt-contrib-connect": "~0.5.0",
+      "grunt-contrib-copy": "~0.4.1",
+      "grunt-contrib-jshint": "~0.7.0",
+      "grunt-contrib-sass": "^1.0.0",
+      "grunt-contrib-watch": "~0.5.3",
+      "grunt-gh-pages": "~0.9.0",
+      "load-grunt-tasks": "~0.2.0"
+    },
+    "engines": {
+      "node": ">=0.8.0"
+    },
+    "scripts": {
+      "test": "grunt test"
+    }
+  }