monorepo 버전 준비

## @strpc
기존 RPC를 package화

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

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

@sammo/server_util/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "@sammo/server_util",
+  "version": "1.0.0",
+  "description": "",
+  "main": "dist/index.js",
+  "scripts": {
+    "build": "tsc --build"
+  },
+  "type": "module",
+  "keywords": [],
+  "author": "",
+  "license": "MIT",
+  "dependencies": {
+    "@sammo/api_def": "workspace:^",
+    "@sammo/util": "workspace:^",
+    "@strpc/express": "workspace:^"
+  },
+  "devDependencies": {
+    "@types/express-session": "^1.17.7",
+    "lodash-es": "^4.17.21"
+  },
+  "peerDependencies": {
+    "lodash-es": "^4.17.21"
+  }
+}