monorepo 버전 준비

## @strpc
기존 RPC를 package화

### @strpc/express
express의 middleware + router 결함

## @sammo
게임 전체
- server, client
- gateway_server, gateway_client

@strpc/def/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "@strpc/def",
+  "version": "1.0.0",
+  "description": "",
+  "main": "dist/index.js",
+  "exports": {
+    ".": "./dist/index.js",
+    "./types": "./dist/types.js"
+  },
+  "devDependencies": {},
+  "scripts": {
+    "build": "tsc --build"
+  },
+  "type": "module",
+  "author": "",
+  "license": "MIT"
+}