Handle initialization of new config storage on Upgrade and restore.

Make sure we initialize connected status properly on BT STATUS call to avoid race conditions. Related to c33c58432358a407e88d5dcda222ea5208eb0810 change.

When preferred Device MacID is stored, do not connect to other paired devices. Should select from Device Menu to pick new preferred device. TODO: could probably ignore preferred after some time of not being present (5-10 sec).

Store last connected device in EEPROM. Store selected device from menu in EEPROM. Reset Last MacID on pairing clear.

Add support for storing byte-arrays in eeprom (eg MacId of last device).

Silence the logging for stable code.

Do not overwrite the BT connection state on every new BT message.

Clarify logging. Only initiate device when space in Device Table (should be always anyways).

Update the build toolchain. Disable debug symbol generation.

When selecting device in menu, make sure you select the device that is actually displayed on selected position. Display can skip positions. Fix for logical error of overwriting BT table during periodic INACTIVE DEVICE cleanups, with uninitialized data. Do not clean the device table periodically to allow selection in Device menu ( before this between render and selection - the device table often changed ).