feat: Fulfillment module basic structure (#6319)

**What**
Scafold the fulfillment module basic structure

**Bonus**
Simplified module scaffolding with new factories and less directories to manage
- mikro orm connection loader factory
- initialize factory

FIXES CORE-1709
FIXES CORE-1710

packages/fulfillment/package.json

@@ -0,0 +1,61 @@
+{
+  "name": "@medusajs/fulfillment",
+  "version": "0.1.0",
+  "description": "Medusa Fulfillment module",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist"
+  ],
+  "engines": {
+    "node": ">=16"
+  },
+  "bin": {
+    "medusa-fulfillment-seed": "dist/scripts/bin/run-seed.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/medusajs/medusa",
+    "directory": "packages/fulfillment"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "author": "Medusa",
+  "license": "MIT",
+  "scripts": {
+    "watch": "tsc --build --watch",
+    "watch:test": "tsc --build tsconfig.spec.json --watch",
+    "prepublishOnly": "cross-env NODE_ENV=production tsc --build && tsc-alias -p tsconfig.json",
+    "build": "rimraf dist && tsc --build && tsc-alias -p tsconfig.json",
+    "test": "jest --runInBand --bail --forceExit -- src/**/__tests__/**/*.ts",
+    "test:integration": "jest --runInBand --forceExit -- integration-tests/**/__tests__/**/*.ts",
+    "migration:generate": " MIKRO_ORM_CLI=./mikro-orm.config.dev.ts mikro-orm migration:generate",
+    "migration:initial": " MIKRO_ORM_CLI=./mikro-orm.config.dev.ts mikro-orm migration:create --initial",
+    "migration:create": " MIKRO_ORM_CLI=./mikro-orm.config.dev.ts mikro-orm migration:create",
+    "migration:up": " MIKRO_ORM_CLI=./mikro-orm.config.dev.ts mikro-orm migration:up",
+    "orm:cache:clear": " MIKRO_ORM_CLI=./mikro-orm.config.dev.ts mikro-orm cache:clear"
+  },
+  "devDependencies": {
+    "@mikro-orm/cli": "5.9.7",
+    "cross-env": "^5.2.1",
+    "jest": "^29.6.3",
+    "medusa-test-utils": "^1.1.40",
+    "rimraf": "^3.0.2",
+    "ts-jest": "^29.1.1",
+    "ts-node": "^10.9.1",
+    "tsc-alias": "^1.8.6",
+    "typescript": "^5.1.6"
+  },
+  "dependencies": {
+    "@medusajs/modules-sdk": "^1.12.4",
+    "@medusajs/types": "^1.11.8",
+    "@medusajs/utils": "^1.11.1",
+    "@mikro-orm/core": "5.9.7",
+    "@mikro-orm/migrations": "5.9.7",
+    "@mikro-orm/postgresql": "5.9.7",
+    "awilix": "^8.0.0",
+    "dotenv": "^16.1.4",
+    "knex": "2.4.2"
+  }
+}