Added Rectangle

Temp/Program.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Drawing;
+using Shapes;
+using Point = Shapes.Point;
+using Rectangle = Shapes.Rectangle;
+
+namespace Temp
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            var circle = new Circle(new Point(20, 20), 4);
+            Console.WriteLine("Hello World!");
+            var line = new Line(3, 4, 4, 5);
+            var tmp = line.ComputeLength();
+            var point = new Point(3, 3);
+            point.Color = Color.Aqua;
+            var rectangle = new Rectangle(new Point(3,3), new Point(6,3), new Point(6,6), new Point(3,6));
+            //var rectangle2 = new Rectangle(new Point(3,0), new Point(3,0), new Point(3,2), new Point(0,3));
+            Console.WriteLine($"({rectangle.Points[0].X}, {rectangle.Points[0].Y}), ({rectangle.Points[1].X}, {rectangle.Points[1].Y}), ({rectangle.Points[2].X}, {rectangle.Points[2].Y}), ({rectangle.Points[3].X}, {rectangle.Points[3].Y}) Height:{rectangle.CalculateHeight()} Width:{rectangle.CalculateWidth()} Center: {rectangle.CenterPoint.X}, {rectangle.CenterPoint.Y}");
+            rectangle.Rotate(180);
+            Console.WriteLine($"({rectangle.Points[0].X}, {rectangle.Points[0].Y}), ({rectangle.Points[1].X}, {rectangle.Points[1].Y}), ({rectangle.Points[2].X}, {rectangle.Points[2].Y}), ({rectangle.Points[3].X}, {rectangle.Points[3].Y}) Height:{rectangle.CalculateHeight()} Width:{rectangle.CalculateWidth()} Center: {rectangle.CenterPoint.X}, {rectangle.CenterPoint.Y}");
+            rectangle.Rotate(90);
+            Console.WriteLine($"({rectangle.Points[0].X}, {rectangle.Points[0].Y}), ({rectangle.Points[1].X}, {rectangle.Points[1].Y}), ({rectangle.Points[2].X}, {rectangle.Points[2].Y}), ({rectangle.Points[3].X}, {rectangle.Points[3].Y}) Height:{rectangle.CalculateHeight()} Width:{rectangle.CalculateWidth()} Center: {rectangle.CenterPoint.X}, {rectangle.CenterPoint.Y}");
+
+        }
+    }
+}

Temp/Temp.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>netcoreapp2.2</TargetFramework>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Shapes\Shapes.csproj" />
+    </ItemGroup>
+
+</Project>