NEW: Add Hinge Angle sensor for Android (#1979)

* NEW: Added support for Android's Hinge angle sensor.

* FIX: Updated documentation.

* Bump minor version to 1.11.0.

---------

Co-authored-by: Håkan Sidenvall <hakan.sidenvall@unity3d.com>

Author: todi1856

Assets/QA/Tests/Sensors.meta

@@ -0,0 +1,36 @@
+using System;
+using UnityEngine;
+using UnityEngine.InputSystem;
+using UnityEngine.UI;
+
+public class HingeAngleTest : MonoBehaviour
+{
+    [Serializable]
+    class SensorCapabilities
+    {
+        public int sensorType;
+        public float resolution;
+        public int minDelay;
+    }
+
+    public Text info;
+    SensorCapabilities caps;
+    void Start()
+    {
+        if (HingeAngle.current != null)
+        {
+            InputSystem.EnableDevice(HingeAngle.current);
+            caps = JsonUtility.FromJson<SensorCapabilities>(HingeAngle.current.description.capabilities);
+        }
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        if (HingeAngle.current != null)
+        {
+            info.text = $"Capabilities: resolution = {caps.resolution}, minDelay = {caps.minDelay}\n" +
+                $"Angle: {HingeAngle.current.angle.ReadValue()}";
+        }
+    }
+}