Added NPM related details for publishing to the Unity package

Author: ashblue

Assets/FluidBehaviorTree/package.json

@@ -15,5 +15,14 @@
     "name": "Ash Blue",
     "email": "ash@blueashes.com",
     "url": "https://twitter.com/ashbluewd"
-  }
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ashblue/fluid-behavior-tree.git"
+  },
+  "bugs": {
+    "url": "https://github.com/ashblue/fluid-behavior-tree/issues"
+  },
+  "homepage": "https://github.com/ashblue/fluid-behavior-tree#readme"
 }