Add input:touchdevice:td_rotation config

Add support for touch device roation. The rotation is
set globally with `input:touchdevice:td_rotation config` and by
device with `td_rotation` in a device block.

src/managers/input/InputManager.hpp

@@ -53,6 +53,7 @@ public:
 
     void            setKeyboardLayout();
     void            setPointerConfigs();
+    void            setTouchDeviceConfigs();
 
     void            updateDragIcon();
     void            updateCapabilities(wlr_input_device*);