Reviewed Tests project

- Removed example browsing test. Focusing on examples being built on their own instead.
- Removed old .projitems/.shproj from bindings and examples.
- Simplified NetCore, NetCoreRT, NetFX tests into one that uses multitarget instead.

Tests/Program.cs

@@ -0,0 +1,48 @@
+using Raylib;
+using static Raylib.Raylib;
+
+namespace Tests
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            // Initialization
+            //--------------------------------------------------------------------------------------
+            const int screenWidth = 800;
+            const int screenHeight = 450;
+        
+            InitWindow(screenWidth, screenHeight, "raylib [core] example - basic window");
+        
+            SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
+            //--------------------------------------------------------------------------------------
+        
+            // Main game loop
+            while (!WindowShouldClose())    // Detect window close button or ESC key
+            {
+                // Update
+                //----------------------------------------------------------------------------------
+                // TODO: Update your variables here
+                //----------------------------------------------------------------------------------
+        
+                // Draw
+                //----------------------------------------------------------------------------------
+                BeginDrawing();
+        
+                    ClearBackground(Color.RAYWHITE);
+        
+                    DrawText("Congrats! You created your first window!", 190, 200, 20, Color.LIGHTGRAY);
+        
+                EndDrawing();
+                //----------------------------------------------------------------------------------
+            }
+        
+            // De-Initialization
+            //--------------------------------------------------------------------------------------
+            CloseWindow();        // Close window and OpenGL context
+            //--------------------------------------------------------------------------------------
+        
+            return;
+        }
+    }
+}