Added hotkey for toggling the crop setting

Source/Core/Core/HotkeyManager.cpp

@@ -46,6 +46,7 @@ const std::string hotkey_labels[] =
 	_trans("Increase IR"),
 	_trans("Decrease IR"),
 
+	_trans("Toggle Crop"),
 	_trans("Toggle Aspect Ratio"),
 	_trans("Toggle EFB Copies"),
 	_trans("Toggle Fog"),

Source/Core/Core/HotkeyManager.h

@@ -44,6 +44,7 @@ enum Hotkey
 	HK_INCREASE_IR,
 	HK_DECREASE_IR,
 
+	HK_TOGGLE_CROP,
 	HK_TOGGLE_AR,
 	HK_TOGGLE_EFBCOPIES,
 	HK_TOGGLE_FOG,