add module minify images

.gitignore

+/node_modules
+.idea/
\ No newline at end of file

imagemin.js

+#!/usr/bin/node
+
+const imagemin = require('imagemin-keep-folder');
+const imageminPngquant = require('imagemin-pngquant');
+const imageminMozjpeg = require('imagemin-mozjpeg');
+
+if (process.argv.length !== 4) {
+    console.log('Usage: minify [source directory] [destination directory]');
+    return;
+}
+
+const srcDir = process.argv[2];
+const destinationDir = process.argv[3];
+
+console.log('minify from ' + srcDir + ' to ' + destinationDir);
+
+imagemin([srcDir + '/**/*.{jpg,png}'], {
+        replaceOutputDir: output => {
+            return output.replace(srcDir, destinationDir);
+        },
+        plugins: [
+            imageminMozjpeg({
+                quality: 70
+            }),
+            imageminPngquant({
+                quality: [0.6, 0.8]
+            })
+        ]
+}).then(files =>{
+    files.forEach(file=>{
+        console.log(file.path);
+    });
+});
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package.json

+{
+  "name": "imagemin",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git@gitlab.onibi.fr:tdrouet/imagemin.git"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "imagemin-keep-folder": "^5.3.2",
+    "imagemin-mozjpeg": "^8.0.0",
+    "imagemin-pngquant": "^8.0.0"
+  }
+}