Initial UI in src

src/UI/UI_label.hpp

@@ -0,0 +1,15 @@
+#pragma once
+#include <string>
+#include "UI_item.hpp"
+
+#define UI_LABEL_TYPE std::string("UIlabel")
+
+class UI_label : public UI_item
+{
+public:
+    UI_label(std::string id, std::string text, Color fg_color, Color bg_color);
+    UI_label(const json& j);
+
+    void from_json(const json& j) override;
+    json to_json() const override;
+};