Introduced AtmosphericPressure.

Part of #1424.

src/main/java/de/dennisguse/opentracks/data/models/AtmosphericPressure.java

@@ -0,0 +1,48 @@
+package de.dennisguse.opentracks.data.models;
+
+import java.util.Objects;
+
+public class AtmosphericPressure {
+
+    public static AtmosphericPressure ofPA(float value_Pa) {
+        return new AtmosphericPressure(value_Pa * 100);
+    }
+
+    public static AtmosphericPressure ofHPA(float value_hPa) {
+        return new AtmosphericPressure(value_hPa);
+    }
+
+    private final float value;
+
+    private AtmosphericPressure(float value) {
+        this.value = value;
+    }
+
+    public float getPA() {
+        return value * 100;
+    }
+
+    public float getHPA() {
+        return value;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        AtmosphericPressure that = (AtmosphericPressure) o;
+        return Float.compare(that.value, value) == 0;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(value);
+    }
+
+    @Override
+    public String toString() {
+        return "AtmosphericPressure{" +
+                "value=" + value +
+                '}';
+    }
+}