starting with ESP-IDF

- initial ESP-IDF project
- starting custom component (Timber)

Signed-off-by: Peter Siegmund <peter@rdkr.com>

.github/workflows/esp-idf_build.yml

@@ -0,0 +1,26 @@
+name: Build the ESP-IDF Project
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        idf_ver: [release-v5.0, release-v5.1, release-v5.2]
+        idf_target: [esp32s3]
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          submodules: "recursive"
+      - name: ESP-IDF build
+        uses: espressif/esp-idf-ci-action@v1
+        with:
+          esp_idf_version: ${{ matrix.idf_ver }}
+          target: ${{ matrix.idf_target }}
+          path: ePaper-ESP-IDF