Fixed Scissor Test on Intel based GPUs (#595)

* Reworked scissor tests to remove fixme and handle issues with intel gpu's

* Error handling for scissor tests

* Disable strict opengl by default

* Reformatting for JD

* Updated scheme for new property in config

* Fixed typo

* Moved magic value to constant. I liked the magic :(

* Fixed ordering for undertale

* Fixed undertale bug

* Removed strict opengl in favour of required. With this an exception is no longer thrown, just a warning for required extensions

* Uses clamp instead of if's

* Removed evil tabs and no longer used include

Ryujinx.Graphics/NvGpu.cs

@@ -8,6 +8,8 @@ namespace Ryujinx.Graphics
 {
     public class NvGpu
     {
+        public const int MaxViewportSize = 0x3FFF;
+
         public IGalRenderer Renderer { get; private set; }
 
         public GpuResourceManager ResourceManager { get; private set; }