Add clean task.

.vscode/tasks.json

@@ -37,6 +37,22 @@
                 "$gcc"
             ]
         },
+        {
+            "label": "X86_64 - make clean - domod",
+            "options": {
+                "cwd": "${workspaceRoot}/_builds/x86_64_domo-debug/buildroot/build/domod",
+            },
+            "type": "shell",
+            "command": "make clean",
+            "group": "build",
+            "presentation": {
+                "echo": true,
+                "reveal": "always"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ]
+        },        
         {
             "label": "X86_64 - cmake - libubus-cpp",
             "type": "shell",