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

core/include/esp/types.h

@@ -3,6 +3,7 @@
 
 #include <stdint.h>
 #include <stdbool.h>
+#include <stddef.h>
 
 typedef volatile uint32_t *esp_reg_t;