refactor: move jest and add package.json to /test

tsconfig.json

@@ -15,9 +15,9 @@
     "sourceMap": true,
     "tsBuildInfoFile": "./.cache/tsbuildinfo",
     "incremental": true,
-    "rootDir": "./src",
     "typeRoots": ["./node_modules/@types", "./typings"],
     "downlevelIteration": true
   },
-  "include": ["./src/**/*.ts"]
+  "include": ["./src/**/*.ts"],
+  "exclude": ["test", "lib", "ci", "doc"]
 }