Add package.json and project dependencies

package.json

@@ -0,0 +1,41 @@
+{
+  "name": "sleep-tracker-backend",
+  "version": "1.0.0",
+  "description": "Backend server for Sleep Tracker, a web app tracking sleep time and mood in order to optimize your sleep time. ",
+  "main": "index.js",
+  "scripts": {
+    "test": "test"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ruihildt/sleep-tracker-backend.git"
+  },
+  "keywords": [
+    "nodejs",
+    "express",
+    "api"
+  ],
+  "author": "rui hildt",
+  "license": "AGPL-3.0-or-later",
+  "bugs": {
+    "url": "https://github.com/ruihildt/sleep-tracker-backend/issues"
+  },
+  "homepage": "https://github.com/ruihildt/sleep-tracker-backend#readme",
+  "dependencies": {
+    "bcryptjs": "^2.4.3",
+    "cors": "^2.8.5",
+    "dotenv": "^8.0.0",
+    "express": "^4.17.1",
+    "helmet": "^3.20.0",
+    "jsonwebtoken": "^8.5.1",
+    "knex": "^0.19.1",
+    "knex-cleaner": "^1.2.1",
+    "sqlite3": "^4.0.9"
+  },
+  "devDependencies": {
+    "eslint": "^6.1.0",
+    "jest": "^24.8.0",
+    "nodemon": "^1.19.1",
+    "supertest": "^4.0.2"
+  }
+}