Update tests to ProjectReference and remove old test code

Raylib-cs.Tests/Raylib-cs.Tests.csproj

@@ -12,6 +12,6 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Raylib-cs" Version="4.0.0" />
+    <ProjectReference Include="..\Raylib-cs\Raylib-cs.csproj" />
   </ItemGroup>
 </Project>

Raylib-cs.Tests/RaylibTests.cs

@@ -43,53 +43,5 @@ namespace Raylib_cs.Tests
             CheckType<VrStereoConfig>();
             CheckType<RenderBatch>();
         }
-
-        [Fact]
-        public void TextToInteger()
-        {
-            int value = Raylib.TextToInteger("99999");
-            Assert.Equal(99999, value);
-        }
-
-        [Fact]
-        public void TextToPascal()
-        {
-            string input = "hello_world";
-            string text = Raylib.TextToPascal(input).ToString();
-            Assert.Equal("HelloWorld", text);
-        }
-
-        [Fact]
-        public void LoadCodepoints()
-        {
-            int count = 0;
-            string input = "aàáâãäāăąȧXǎȁȃeèéêẽëē";
-            int[] codepoints1 = Raylib.LoadCodepoints(input, ref count);
-
-            for (int i = 0; i < input.Length; i++)
-            {
-                Assert.Equal(input[i], codepoints1[i]);
-            }
-        }
-
-        [Fact]
-        public void CodepointToUTF8()
-        {
-            int byteSize = 0;
-            string text = Raylib.CodepointToUTF8(224, ref byteSize).ToString();
-            Assert.Equal("à", text);
-        }
-
-        [Fact]
-        public void TextCodepointsToUTF8()
-        {
-            string input = "aàáâãäāăąȧXǎȁȃeèéêẽëē";
-
-            int count = 0;
-            int[] codepoints1 = Raylib.LoadCodepoints(input, ref count);
-
-            string text = Raylib.TextCodepointsToUTF8(codepoints1, codepoints1.Length).ToString();
-            Assert.Equal(input, text);
-        }
     }
 }