remove monogame dependency

Curve/CubicBezierCurve2D.cs

@@ -1,4 +1,4 @@
-using Microsoft.Xna.Framework;
+using System.Numerics;
 using MoonTools.Core.Curve.Extensions;
 
 namespace MoonTools.Core.Curve

Curve/CubicBezierCurve3D.cs

@@ -1,4 +1,4 @@
-using Microsoft.Xna.Framework;
+using System.Numerics;
 
 namespace MoonTools.Core.Curve
 {

Curve/Curve.csproj

@@ -1,11 +1,5 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="MonoGame.Framework.DesktopGL.Core" Version="3.7.0.7" />
-  </ItemGroup>
-
-</Project>
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>netstandard2.1</TargetFramework>
+  </PropertyGroup>
+</Project>

Curve/Extensions.cs

@@ -1,4 +1,4 @@
-using Microsoft.Xna.Framework;
+using System.Numerics;
 
 namespace MoonTools.Core.Curve.Extensions
 {

Curve/QuadraticBezierCurve2D.cs

@@ -1,4 +1,4 @@
-using Microsoft.Xna.Framework;
+using System.Numerics;
 using MoonTools.Core.Curve.Extensions;
 
 namespace MoonTools.Core.Curve

Curve/QuadraticBezierCurve3D.cs

@@ -1,4 +1,4 @@
-using Microsoft.Xna.Framework;
+using System.Numerics;
 
 namespace MoonTools.Core.Curve
 {

Test/CubicBezierCurve2D.cs

@@ -2,8 +2,8 @@ using NUnit.Framework;
 using FluentAssertions;
 
 using MoonTools.Core.Curve;
-using Microsoft.Xna.Framework;
 using System;
+using System.Numerics;
 
 namespace Tests
 {

Test/CubicBezierCurve3D.cs

@@ -2,8 +2,8 @@ using NUnit.Framework;
 using FluentAssertions;
 
 using MoonTools.Core.Curve;
-using Microsoft.Xna.Framework;
 using System;
+using System.Numerics;
 
 namespace Tests
 {

Test/QuadraticBezierCurve2D.cs

@@ -2,8 +2,8 @@ using NUnit.Framework;
 using FluentAssertions;
 
 using MoonTools.Core.Curve;
-using Microsoft.Xna.Framework;
 using System;
+using System.Numerics;
 
 namespace Tests
 {

Test/QuadraticBezierCurve3D.cs

@@ -2,8 +2,8 @@ using NUnit.Framework;
 using FluentAssertions;
 
 using MoonTools.Core.Curve;
-using Microsoft.Xna.Framework;
 using System;
+using System.Numerics;
 
 namespace Tests
 {