change folder structure to composer module

composer.json

@@ -0,0 +1,39 @@
+{
+  "name": "d3/pdfdocuments",
+  "description": "PDF-Dokumentgenerator",
+  "type": "oxideshop-module",
+  "keywords": [
+    "oxid",
+    "modules",
+    "eShop",
+    "d3",
+    "PDF"
+  ],
+  "authors": [
+    {
+        "name": "D3 Data Development (Inh. Thomas Dartsch)",
+        "email": "info@shopmodule.com",
+        "homepage": "http://www.d3data.de",
+        "role": "Owner"
+    }
+  ],
+  "homepage": "https://www.oxidmodule.com/",
+  "license": [
+    "proprietary"
+  ],
+  "extra": {
+    "oxideshop": {
+      "blacklist-filter": [
+        "composer.json"
+      ],
+      "target-directory": "d3/pdfdocuments"
+    }
+  },
+  "require": {
+  },
+  "autoload": {
+    "psr-4": {
+      "D3\\PdfDocuments\\": "../../../source/modules/d3/pdfdocuments"
+    }
+  }
+}