CI: Add arduino-lint-action to verify conformity with expected Arduino library standards. (#7)

Author: aentinger

.github/workflows/arduino-lint.yml

@@ -0,0 +1,27 @@
+name: Arduino Lint
+on:
+  push:
+  pull_request:
+  # Scheduled trigger checks for breakage caused by new rules added to Arduino Lint
+  schedule:
+    # run every Saturday at 3 AM UTC
+    - cron: "0 3 * * 6"
+  # See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows#workflow_dispatch
+  workflow_dispatch:
+  # See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows#repository_dispatch
+  repository_dispatch:
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Arduino Lint
+        uses: arduino/arduino-lint-action@v1
+        with:
+          official: true
+          project-type: library
+          library-manager: update

README.md

@@ -4,6 +4,7 @@
 ==============
 [![Spell Check status](https://github.com/facchinm/USBHostMbed5/actions/workflows/spell-check.yml/badge.svg)](https://github.com/facchinm/USBHostMbed5/actions/workflows/spell-check.yml)
 [![Sync Labels status](https://github.com/facchinm/USBHostMbed5/actions/workflows/sync-labels.yml/badge.svg)](https://github.com/facchinm/USBHostMbed5/actions/workflows/sync-labels.yml)
+[![Arduino Lint](https://github.com/facchinm/USBHostMbed5/workflows/Arduino%20Lint/badge.svg)](https://github.com/facchinm/USBHostMbed5/actions?workflow=Arduino+Lint)
 
 ARM Mbed5 USB Host library ported for [ArduinoCore-mbed](https://github.com/arduino/ArduinoCore-mbed) enabled boards.