add sketch folder to examples (#654)

* add sketch folder to examples

* Corrected the call to parseExamples

* Sketches - > sketches

Author: aster94

src/arduino/exampleManager.ts

@@ -64,6 +64,18 @@ export class ExampleManager {
                 children: examplesFromCustomLibraries,
             });
         }
+
+        // load Examples from user's workspace
+        const sketchesPath = path.join(this._settings.sketchbookPath, "sketches");
+        const examplesFromSketches = await this.parseExamples(sketchesPath);
+        if (examplesFromSketches.length) {
+            examples.push({
+                name: "Workspace",
+                path: sketchesPath,
+                children: examplesFromSketches,
+            });
+        }
+
         return examples;
     }