feat: revision 0.0.11 and refactor (#4)

* feat: starting refactoring

* feat: draw text and draw text tui

* feat: remove <gba.h> from main.c

* change: rename core_native_gba.h to zeebo.h

* feat: draw logo splash screen

* feat: improve cmake config

* style: logo

* feat: fake native_draw_image

* style: rename callbacks in c

* feat: loop 60 fps / draw 30 fps always

* docs: organize cmakelists.txt

* docs: remove readme gh from doxygen

* feat: engine aliases in cmakelist.txt