Huawei: Add calories support

These devices provide calories instead of kcal, which are rounded
per-sample, resulting in a slight difference from what is shown on the
device itself.

GBDaoGenerator/src/nodomain/freeyourgadget/gadgetbridge/daogen/GBDaoGenerator.java

@@ -1363,7 +1363,7 @@ public class GBDaoGenerator {
         activitySample.addIntProperty("calories").notNull().codeBeforeGetter(
                 "@Override\n" +
                 "    public int getActiveCalories() {\n" +
-                "        return getCalories();\n" +
+                "        return getCalories() == HuaweiActivitySample.NOT_MEASURED ? HuaweiActivitySample.NOT_MEASURED : Math.round(getCalories() / 1000f);\n" +
                 "    }\n"
         );
         activitySample.addIntProperty("distance").notNull().codeBeforeGetter(

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huawei/HuaweiBRCoordinator.java

@@ -163,6 +163,11 @@ public abstract class HuaweiBRCoordinator extends AbstractBLClassicDeviceCoordin
         return true;
     }
 
+    @Override
+    public boolean supportsActiveCalories() {
+        return true;
+    }
+
     @Override
     public boolean supportsActivityTracking() {
         return true;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huawei/HuaweiLECoordinator.java

@@ -172,6 +172,11 @@ public abstract class HuaweiLECoordinator extends AbstractBLEDeviceCoordinator i
         return true;
     }
 
+    @Override
+    public boolean supportsActiveCalories() {
+        return true;
+    }
+
     @Override
     public boolean supportsActivityTracking() {
         return true;