pyvisa issue #127
Description
Probably some labber python API files (such as 'VISA_Driver.pyc' under labber\python-labber\multiproc-include\py37) should be updated to work with newer versions of pyvisa. I guess in 'VISA_Driver.pyc', it still uses the command 'imports visa' to load the pyvisa module, and this causes some 'import visa' error when using a newer version of pyvisa. Since pyvisa 1.6, the importing command of pyvisa is not 'import visa' anymore, it banned the use of 'visa' in order to avoid conflict with other python packages with the same name 'visa', instead, we have to use 'import pyvisa' or 'import pyvisa as visa' instead.