add(controller): cherry pick utility package from ui-gameScene

src/main/java/de/hdm_stuttgart/battlearena/Controller/Utilities/ScreenClasses.java

+package de.hdm_stuttgart.battlearena.Controller.Utilities;
+
+public enum ScreenClasses {
+//    enums have a range because the screen calculations are not precise, especially with screen scaling in the OS settings
+    INCH27(26, 28),
+    INCH24(23, 25),
+    INCH13_SURFACE(12, 14);
+
+    final int lBound, uBound;
+
+    ScreenClasses(int lBound, int uBound) {
+        this.lBound = lBound;
+        this.uBound = uBound;
+    }
+
+    public static ScreenClasses inRange(int inches) {
+        for (ScreenClasses screens : ScreenClasses.values()) {
+            if (screens.isInRange(inches)) {
+                return screens;
+            }
+        }
+        return null;
+    }
+
+    private boolean isInRange(int inches) {
+        return inches >= lBound && inches <= uBound;
+    }
+}

src/main/java/de/hdm_stuttgart/battlearena/Controller/Utilities/ScreenDimensionCalculator.java

+package de.hdm_stuttgart.battlearena.Controller.Utilities;
+
+public class ScreenDimensionCalculator {
+    public double calculateDiagonalInches(double width, double height, double dpi) {
+        double diagonalPixels = Math.sqrt(Math.pow(width, 2) + Math.pow(height, 2));
+        double diagonalInches = diagonalPixels / dpi;
+        System.out.println("diagonal pixels: " + diagonalPixels);
+        System.out.println("width: " + width);
+        System.out.println("height: " + height);
+        return diagonalInches;
+    }
+}