sesutil: Add extra information specific to some SES devices

[bapt]

Summary

Rework stat2ascii into a printing function that allows to add more data
with a risk of overflowing a static buffer.

In the sesutil map command add extra informations:

• Thermal sensor temperature
• Cooling devices speed
• Voltage sensors, current consumption

[bapt]

Use a buffer to only print extra status if needed

[allanjude]

I like the extra output, thank you.