Add Blink. Refactor examples.

examples/CMakeLists.txt

@@ -1,10 +1,8 @@
-add_subdirectory(color)
-add_subdirectory(frame)
-add_subdirectory(gauge)
-add_subdirectory(input)
-add_subdirectory(menu)
-add_subdirectory(menu2)
-add_subdirectory(print_key_press)
-add_subdirectory(separator)
-add_subdirectory(toggle)
-add_subdirectory(vbox_hbox)
+function(example name)
+  add_executable(${name} ${name}.cpp)
+  target_link_libraries(${name} PUBLIC ftxui)
+endfunction(example)
+
+add_subdirectory(component)
+add_subdirectory(dom)
+example(print_key_press)