Entering CC mode when current range is set to "Best"

[prasimix]

It seems that current range switching cannot follow "fast" LIST and cause that output enters CC mode with connected load. Here is an example list (connected load is 16.4 R) :

LIST:DWEL 20ms, 250ms
LIST:VOLT 40, 20mV
LIST:CURR 0.5, 2.5

When current range is set to Best (current in second step was limited to 0.5 A because current range switching was not happen in right time) and Autoranging is set to ON:

When current range is set to 5 A:

It seems that Best mode current range switching can failed on both rising and falling edge, here is the LIST example:

LIST:DWEL 20ms, 20ms, 20ms, 60ms
LIST:VOLT 40, 20mV, 40, 20mV
LIST:CURR 2.5, 2.5, 2.5, 0.2

[prasimix]

Fixed thanks to #142