enable micropython.mem_use() method

micropython.mem_info() provides some information regarding stack usage and memory consumption which is quite useful in order to determine the complexity of a program. It adds like nothing to the size of the firmware,

pycardium/mpconfigport.h

@@ -3,6 +3,7 @@
 #define MICROPY_HW_MCU_NAME "max32666"
 
 /* MicroPython Config Options */
+#define MICROPY_PY_MICROPYTHON_MEM_INFO     (1)
 
 /* We raise asynchronously from an interrupt handler */
 #define MICROPY_ASYNC_KBD_INTR              (1)