Closes#12
Adds a menu option to install firmware from a packed ZIP.
This PR additionally lays the groundwork to add data import/export via ZIP. In the future, a qt_common subproject should be added to handle common Qt tasks such as this.
Furthermore, to decrease dependency complexity, this also introduces CPM, a wrapper around FetchContent. In theory, this should also lay the groundwork for #8 as well.
Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/52
crueter