fix(metal): fix simulator

Author: vadimvitvickiy

Sources/GPUImage/Base/MetalRenderingDevice.swift

@@ -30,11 +30,15 @@ public class MetalRenderingDevice {
                guard let queue = self.device.makeCommandQueue() else {fatalError("Could not create command queue")}
                self.commandQueue = queue
 
-               if #available(iOS 9, macOS 10.13, *) {
-                   self.metalPerformanceShadersAreSupported = MPSSupportsMTLDevice(device)
-               } else {
-                   self.metalPerformanceShadersAreSupported = false
-               }
+              #if targetEnvironment(simulator)
+                  self.metalPerformanceShadersAreSupported = false
+              #else
+                  if #available(iOS 9, macOS 10.13, *) {
+                      self.metalPerformanceShadersAreSupported = MPSSupportsMTLDevice(device)
+                  } else {
+                    self.metalPerformanceShadersAreSupported = false
+                  }
+              #endif
 
                do {
                    #if targetEnvironment(simulator)