Init conan + meson project

Signed-off-by: Nikolai Rodionov <allanger@badhouseplants.net>

src/main.cpp

@@ -0,0 +1,9 @@
+#include <QApplication>
+#include <QLabel>
+
+int main(int argc, char *argv[]) {
+    QApplication app(argc, argv);
+    QLabel label("Hello from Qt + Meson + Conan!");
+    label.show();
+    return app.exec();
+}