Modify params endpoint response

controllers/params.mjs

@@ -6,5 +6,20 @@ import Common from '../src/common.js';
  * Show all possible parameters for manifest URLs
  */
 export default async function exposeParams() {
-    return await Common.getParamsFromFolders();
+    console.log(process.env.IMAGES_DIR);
+    let techs = [];
+
+    for (let key in Common.TECH_NAMES) {
+        techs.push({
+            'acronym': key.toUpperCase(),
+            'fullname': Common.TECH_NAMES[key]
+        });
+    }
+    
+    let papyri = await Common.getParamsFromFolders();
+
+    return {
+        'techniques' : techs,
+        papyri
+    };
 }