👷‍♂️ Update package.json to allow installation as package

package.json

@@ -9,6 +9,7 @@
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "scripts": {
+    "postinstall": "npm start",
     "start": "rm -rf dist && tsc",
     "test": "echo \"Error: no test specified\" && exit 1",
     "update": "rm -rf node_modules package-lock.json && npm install"
@@ -18,5 +19,10 @@
     "@types/node": "^10.12.8",
     "mysql": "^2.16.0",
     "ssn": "git+https://git.jedipedia.net/swtor/ssn.git"
-  }
+  },
+  "files": [
+    "src/*.ts",
+    "src/*/*.ts",
+    "tsconfig.json"
+  ]
 }