Implemented QML skeleton for the application

qml/Controls/Frame.qml

@@ -0,0 +1,13 @@
+import QtQuick 2.12
+import QtQuick.Controls 2.12
+
+import Utils 1.0
+
+Frame {
+    background: Rectangle {
+        color: Palette.backgroundColor
+        border.color: Palette.borderColor
+        border.width: 1
+        radius: 8
+    }
+}