shields: arduino: Add support for Arduino Modulino Thermo

boards/shields/arduino_modulino_thermo/Kconfig.shield

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+# SPDX-FileCopyrightText: Copyright The Zephyr Project Contributors
+# SPDX-License-Identifier: Apache-2.0
+
+config SHIELD_ARDUINO_MODULINO_THERMO
+	def_bool $(shields_list_contains,arduino_modulino_thermo)

boards/shields/arduino_modulino_thermo/arduino_modulino_thermo.overlay

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+/*
+ * SPDX-FileCopyrightText: Copyright The Zephyr Project Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	aliases {
+		dht0 = &arduino_modulino_thermo;
+	};
+};
+
+&zephyr_i2c {
+	arduino_modulino_thermo: arduino-modulino-thermo@44 {
+		compatible = "renesas,hs300x";
+		reg = <0x44>;
+	};
+};

boards/shields/arduino_modulino_thermo/doc/index.rst

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+.. _arduino_modulino_thermo:
+
+Arduino Modulino Thermo
+#######################
+
+Overview
+********
+
+The Arduino Modulino Thermo is a QWIIC compatible module built around the Renesas HS3003 temperature
+and humidity sensor.
+
+.. image:: img/arduino_modulino_thermo.webp
+   :align: center
+   :alt: Arduino Modulino Thermo
+
+Programming
+***********
+
+Set ``--shield arduino_modulino_thermo`` when you invoke ``west build``.
+
+For example,
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/sensor/dht_polling
+   :board: arduino_uno_r4@wifi
+   :shield: arduino_modulino_thermo
+   :goals: build

boards/shields/arduino_modulino_thermo/shield.yml

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+shield:
+  name: arduino_modulino_thermo
+  full_name: Arduino Modulino Thermo
+  vendor: arduino
+  supported_features:
+    - sensor