Add the configuration dialog for post processing configuration options.

Only enables the config button when the shader options available to it

Source/Core/DolphinWX/CMakeLists.txt

@@ -62,6 +62,7 @@ set(GUI_SRCS
 	MemoryCards/WiiSaveCrypted.cpp
 	NetWindow.cpp
 	PatchAddEdit.cpp
+	PostProcessingConfigDiag.cpp
 	SoftwareVideoConfigDialog.cpp
 	TASInputDlg.cpp
 	VideoConfigDiag.cpp