Add Blink. Refactor examples.

examples/CMakeLists.txt

examples/color/CMakeLists.txt

examples/component/CMakeLists.txt

examples/component/color.cpp

examples/component/gauge.cpp

examples/component/input.cpp

examples/component/menu.cpp

examples/component/menu2.cpp

examples/component/toggle.cpp

examples/dom/CMakeLists.txt

examples/dom/frame.cpp

examples/dom/separator.cpp

examples/dom/vbox_hbox.cpp

examples/frame/CMakeLists.txt

examples/gauge/CMakeLists.txt

examples/input/CMakeLists.txt

examples/menu/CMakeLists.txt

examples/menu2/CMakeLists.txt

examples/print_key_press.cpp

examples/print_key_press/CMakeLists.txt