Add DeckCtrl memory access and serial number

[evoggy]

This PR adds similar memory access to the DeckCtrl system as the 1-wire memories has. This means adding memory access to configuration (read-only) as well as access to the serial number of the memory. To achieve this the following changes have been made:

• Added new type of memory (MEM_TYPE_DECKCTRL)
  • Access to the 2048 byte configuration page of the DeckCtrl MCU
  • Access to the 12 byte DeckCtrl MCU serial
• Length of the serial number in the deck info packet has been increased from 8 to 12 bytes. This is compatible with current versions of the Python lib
• Removed special handling of 1-wire memory access and instead use the normal memory handling
• Possibility to register multiple memories of the same type and use internal IDs in the callbacks to handle multiple memories with the same callbacks
• Sets a new limit of maximum 4 1-wire memory decks (will assert otherwise)
• Moved memory access to 1-wire/DeckCtrl into their respective backends

[tobbeanton]

A lot of changes but I can not find anything that looks suspicious, 👍