Main menu customization settings (hide/show items)

[eadmaster]

Add a config option to hide/show main menu items according to user preference (saved in bruce.conf).

In my case i have these items i'd like to hide, since i don't have the modules required to use them: RFID, FM, NRF24, Connect.

This should help with the increasing number of items in the main menu making the navigation too slow.

It could also justify moving some items from the "Others" menu, like BadUSB as suggested here: #325 #123

[eadmaster]

Initial implementation added in eadmaster@81bb8fc

Possible future enhancements:

• add a submenu in "Config" to interactively choose the items to disable
• move the disabled items inside "Others", instead of hiding them
• add another array in bruce.conf to customize the menu items order (and/or implicitly disable them?)