add gulp and gulp-image

package.json

+{
+  "name": "citrus-slider-website",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "dependencies": {},
+  "devDependencies": {
+    "gulp": "^4.0.0",
+    "gulp-image": "^4.3.0"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://gitea.iseardmedia.com/michael/Citrus-Slider-Website.git"
+  },
+  "author": "",
+  "license": "ISC"
+}