doesn't compile, but UI.h/.cpp code has been divvy'd up.

refs #43 @2h

src/UICaption.cpp

@@ -0,0 +1,22 @@
+#include "UICaption.h"
+
+UIDrawable* UICaption::click_at(sf::Vector2f point)
+{
+    if (click_callable)
+    {
+        if (text.getGlobalBounds().contains(point)) return this;
+    }
+    return NULL;
+}
+
+void UICaption::render(sf::Vector2f offset)
+{
+    text.move(offset);
+    Resources::game->getWindow().draw(text);
+    text.move(-offset);
+}
+
+PyObjectsEnum UICaption::derived_type()
+{
+    return PyObjectsEnum::UICAPTION;
+}