This is to help work with recent SDKs that add a RF cal sector by
default in the fifth last sector - just so the sysparam sectors do not
jump around when using different SDK versions.
Helpful to be able to disable echo when sending commands fast, so that
the editor can consume them fast than they arrive. This adds 'echo-on'
and 'echo-off' commands to set the echo state.
* Sysparam implementation
sysparam improvements
Mostly done, a few minor cleanups left.
Add sysparam_editor example
Sysparam code cleanup
Add documentation to sysparam.h
Fix up sysparam.h docs
Added a couple more debug statements
Fix potential memory leak if realloc() fails
Major sysparam overhaul
Add sysparam_get_info function
Add sysparam initialization to app_main.c
* Fixed warnings, added license
