* features_cpu: Fix clock for djgpp
* frontend_dos_set_fork: Fix wrong id names
* dos_input: Fix missing indexing
* dos_joypad: Fix wrong id name
* Fix menu drawing
Menu is already prescaled to VGA_WIDTH x VGA_HEIGHT in vga_menu_frame. We need
to always use those dimensions
* Change dos compilation from griffin to common
* Set vga menu size to 320x200
* Add DOS compilation in gitlab-ci.yml
