This is a major refactoring of the nvs parameters storage. To support
this, a new partition was added. To start using this branch, one must
flash all binaries and possibly re-configure the system.
Some instabilities to tackle. BT Ring buffer were taken out. DAC is
crashing with stack overflow. So does A2DP after playing for a little
while. This needs to be investigated.
First stab at implementing a ring buffer. Now tuning should be done.
The statistics report causes jitters and can be deactivated by lowering
the output verbosity.