add service for exporting and importing datasets

.vscode/c_cpp_properties.json

+{
+    "configurations": [
+        {
+            "name": "Linux",
+            "includePath": [
+                "${workspaceFolder}/**"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/gcc",
+            "cStandard": "c11",
+            "cppStandard": "c++20",
+            "intelliSenseMode": "gcc-x64",
+            "compileCommands": "/home/cyrille/ros2_ws/build/ros_kdb_interfaces/compile_commands.json"
+        }
+    ],
+    "version": 4
+}
\ No newline at end of file

.vscode/tasks.json

+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "build ros_kdb_interfaces",
+      "type": "shell",
+      "command": "cd ~/ros2_ws; colcon build --cmake-args -DCMAKE_EXPORT_COMPILE_COMMANDS=On --paths src/ros_kdb_interfaces",
+      "group": "build",
+      "presentation": {
+        "clear": true
+      }
+    }
+  ]
+}
\ No newline at end of file

CMakeLists.txt

@@ -52,6 +52,9 @@ set(srv_files
   # Data synchronisation
   "srv/SetupReceivingData.srv"
   "srv/SetupSendingData.srv"
+  # Datasets
+  "srv/ExportDataset.srv"
+  "srv/ImportDataset.srv"
   # Topic recording
   "srv/PauseTopicRecording.srv"
   "srv/ResumeTopicRecording.srv"

srv/ExportDataset.srv

+# This service call is used to export a dataset to a file
+string filename # need to be absolute or is relative to the home directory
+string dataset_uri # uris for the dataset
+---
+bool success
+string message
\ No newline at end of file

srv/ImportDataset.srv

+# This service call is used to import a dataset from a file
+string filename # need to be absolute or is relative to the home directory
+string[] collections_uris # uris for the collections where to store the metainformation for the dataset, an empyt list default to the private list
+---
+bool success
+string message
\ No newline at end of file