Ability to hide file types in Game List (#4555)

* Added HiddenFileTypes to config state, and check to file enumeration

* Added hiddenfiletypes checkboxes to the UI

* Added Ava version of HiddenFileTypes

* Inverted Hide to Show with file types, minor formatting

* all variables with a reference to 'hidden' is now 'shown'

* one more variable name changed

* review feedback

* added FileTypes extension methof to get the correlating config value

* moved extension method to new folder and file in Ryujinx.Ui.Common

* added default case for ToggleFileType

* changed exception type to OutOfRangeException

Ryujinx.Ui.Common/Configuration/FileTypes.cs

@@ -0,0 +1,12 @@
+namespace Ryujinx.Ui.Common
+{
+    public enum FileTypes
+    {
+        NSP,
+        PFS0,
+        XCI,
+        NCA,
+        NRO,
+        NSO
+    }
+}