Added train_fmu_gym to tools.json (#834)

Author: JohannesUl

static/assets/images/train_fmu_gym_logo.png

@@ -1,4 +1,32 @@
 [
+    {
+        "name": "train_fmu_gym",
+        "license": "commercial",
+        "url": "https://codebase.helmholtz.cloud/dlr-vsdc/train_fmu_gym",
+        "logo": "train_fmu_gym_logo.png",
+        "vendor": "German Aerospace Center (DLR), Institute of Vehicle Concepts, Department of Vehicle System Dynamics and Control",
+        "vendorURL": "http://vsdc.de/",
+        "examplesURL": "https://codebase.helmholtz.cloud/dlr-vsdc/train_fmu_gym",
+        "description": "A Python-based framework leveraging the Functional Mock-up Interface (FMI) to train, validate, and assess Deep Reinforcement Learning agents",
+        "features": [],
+        "platforms": [
+            "Linux",
+            "Windows"
+        ],
+        "interfaces": [
+            "CLI"
+        ],
+        "fmiVersions": [
+            "2.0",
+            "3.0"
+        ],
+        "fmuExport": [
+        ],
+        "fmuImport": [
+            "CS"
+        ],
+        "layeredStandards": []
+    },
     {
         "name": "ONNX2FMU",
         "license": "osi",