nanotool: Add humidity sensor support

Change-Id: I171c52d2accd2a3baecd58f78f2b3785f2b8e876
Signed-off-by: Armando Visconti <armando.visconti@st.com>
diff --git a/util/nanotool/contexthub.cpp b/util/nanotool/contexthub.cpp
index b4fe1c2..7a3df87 100644
--- a/util/nanotool/contexthub.cpp
+++ b/util/nanotool/contexthub.cpp
@@ -72,6 +72,7 @@
     { SensorType::Activity,             "activity" },
     { SensorType::Vsync,                "vsync" },
     { SensorType::WristTilt,            "wrist_tilt" },
+    { SensorType::Humidity,             "humidity" },
 };
 
 struct SensorTypeAlias {
diff --git a/util/nanotool/contexthub.h b/util/nanotool/contexthub.h
index 1ea0c8a..8dfce26 100644
--- a/util/nanotool/contexthub.h
+++ b/util/nanotool/contexthub.h
@@ -70,6 +70,7 @@
     Vsync,
     CompressedAccel,
     WristTilt = 39,
+    Humidity = 61,
 
     Max_
 };
diff --git a/util/nanotool/sensorevent.cpp b/util/nanotool/sensorevent.cpp
index 7befb9a..5f09505 100644
--- a/util/nanotool/sensorevent.cpp
+++ b/util/nanotool/sensorevent.cpp
@@ -55,6 +55,7 @@
       case SensorType::Temperature:
       case SensorType::AmbientLightSensor:
       case SensorType::Proximity:
+      case SensorType::Humidity:
         sensor_event = new SingleAxisSensorEvent();
         break;