Add esp idf build workflow

.clang-format

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+BasedOnStyle: LLVM
+Language: Cpp
+
+IndentWidth: 4
+UseTab: Never
+#NamespaceIndentation: All
+
+PointerAlignment: Left
+AccessModifierOffset: -4
+AlwaysBreakTemplateDeclarations: true
+LambdaBodyIndentation: Signature
+
+MaxEmptyLinesToKeep: 3
+#ColumnLimit: 128
+
+CompactNamespaces: true
+FixNamespaceComments: true
+
+AllowShortFunctionsOnASingleLine: false
+AllowShortIfStatementsOnASingleLine: true
+
+AlignConsecutiveAssignments: true
+AlignConsecutiveBitFields: true
+AlignConsecutiveDeclarations: true
+AlignConsecutiveMacros: true
+
+#BraceWrapping:
+#  BeforeElse: true

.gitea/workflows/build.yaml

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+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
+      with:
+        submodules: 'recursive'
+    - name: esp-idf build
+      uses: espressif/esp-idf-ci-action@v1
+      with:
+        esp_idf_version: v4.4
+        target: esp32s2
+        path: 'esp32-s2-hmi-devkit-1/examples/smart-panel'

.gitea/workflows/clang-format.yaml

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+name: clang-format Check
+on: [push, pull_request]
+jobs:
+  formatting-check:
+    name: Formatting Check
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        path:
+          - check: 'main/src'
+            exclude: ''              # Nothing to exclude
+    steps:
+    - uses: actions/checkout@v3
+    - name: Run clang-format style check for C/C++/Protobuf programs.
+      uses: jidicula/clang-format-action@v4.11.0
+      with:
+        clang-format-version: '13'
+        check-path: ${{ matrix.path['check'] }}
+        exclude-regex: ${{ matrix.path['exclude'] }}
+        fallback-style: 'Mozilla' # optional