Say hello to Android CMake support

Requirements:
 - NDKr19 or newer
 - Qt 5.12.1 or newer

QtCreator supports the following variables:
 - ANDROID_PACKAGE_SOURCE_DIR
 - ANDROID_EXTRA_LIBS

Be aware, that there is a lot of magic done on QtCreator side, and you
can't use only cmake to build an Android APK.

[ChangeLog][Android][CMake] Add Android support for CMake projects.

Change-Id: I1d351976ed56f424c2bc972f4ff7b5968147a2ed
Reviewed-by: hjk <hjk@qt.io>

src/plugins/cmakeprojectmanager/cmakeprojectnodes.h

@@ -25,6 +25,8 @@
 
 #pragma once
 
+#include "cmakeconfigitem.h"
+
 #include <projectexplorer/projectnodes.h>
 
 namespace CMakeProjectManager {
@@ -72,9 +74,12 @@ public:
     bool addFiles(const QStringList &filePaths, QStringList *notAdded) override;
     Utils::optional<Utils::FileName> visibleAfterAddFileAction() const override;
 
+    QVariant data(Core::Id role) const override;
+    void setConfig(const CMakeConfig &config);
+
 private:
     QString m_tooltip;
-    QString m_target;
+    CMakeConfig m_config;
 };
 
 } // namespace Internal