added java reference code for calories calc

calories.py

@@ -0,0 +1,12 @@
+"""
+Repo: https://codeberg.org/jannis/FitoTrack
+commit: bd78b065cbe6083b2fee4c151f9125304392e21d
+filepath: https://codeberg.org/jannis/FitoTrack/src/commit/bd78b065cbe6083b2fee4c151f9125304392e21d/app/src/main/java/de/tadris/fitness/util/CalorieCalculator.java
+
+Java calories calc code:
+public static int calculateCalories(Context context, Workout workout, double weight) {
+        double mins = (double) (workout.duration / 1000) / 60;
+        int ascent = (int) workout.ascent; // 1 calorie per meter
+        return (int) (mins * (getMET(context, workout) * 3.5 * weight) / 200) + ascent;
+    }
+"""