Merge pull request 'classCell' (#34) from classCell into dev

Reviewed-on: #34
Reviewed-by: Remi NEVEU <remi.neveu@etu.uca.fr>

source/Trek-12/Models/Cell.cs

@@ -0,0 +1,22 @@
+namespace Models;
+
+public class Cell : Position
+{
+    private int value;
+    public int Value
+    {
+        get => value;
+        set => value = value;
+    }
+
+    private string background;
+    public string Background
+    {
+        get => background;
+        set => background = value;
+    }
+    
+    public Cell(int x, int y) : base(x, y)
+    {
+    }
+}