Only download & compile required libraries (#18699)

buildroot/share/PlatformIO/scripts/common-features-dependencies.h

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+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * The purpose of this file is just include Marlin Configuration files,
+ * to discover which FEATURES are enabled, without any HAL include.
+ * Used by common-features-dependencies.py
+ */
+
+#ifndef __MARLIN_FIRMWARE__
+#define __MARLIN_FIRMWARE__
+#endif
+
+//
+// Prefix header to acquire configurations
+//
+#include <stdint.h>
+
+#include "../../../../Marlin/src/core/boards.h"
+#include "../../../../Marlin/src/core/macros.h"
+#include "../../../../Marlin/Configuration.h"
+
+#include "../../../../Marlin/Version.h"
+
+#include "../../../../Marlin/src/inc/Conditionals_LCD.h"
+
+#include "../../../../Marlin/src/core/drivers.h"
+#include "../../../../Marlin/Configuration_adv.h"
+
+#include "../../../../Marlin/src/inc/Conditionals_adv.h"