[Core] Quantum Painter - LVGL Integration (#18499)

Co-authored-by: Nick Brassel <nick@tzarc.org>

quantum/painter/lvgl/qp_lvgl.h

@@ -0,0 +1,25 @@
+// Copyright 2022 Jose Pablo Ramirez (@jpe230)
+// Copyright 2022 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "qp.h"
+#include "lvgl.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter - LVGL External API
+
+/**
+ * Sets up LVGL with the supplied display.
+ *
+ * @param device[in] the handle of the device to control
+ * @return true if init. of LVGL succeeded
+ * @return false if init. of LVGL failed
+ */
+bool qp_lvgl_attach(painter_device_t device);
+
+/**
+ * Disconnects LVGL from any attached display
+ */
+void qp_lvgl_detach(void);