Updates to allow pyvisa 1.11 dependency

[trevormorgan]

Several updates are needed to use pyvisa 1.11 in qcodes.

• import visa is deprecated in favor of import pyvisa as visa
• pyvisa backend using of - is deprecated
  • qcodes forked pyvisa-sim repo has merge updates from upstream to change backend naming schema to pyvisa_sim. This PR needs to land before this one for testing to pass. https://github.com/QCoDeS/pyvisa-sim/pull/5
• write_raw low-level interface to visa_handle.write update needed to to changes in pyvisa event handler
  • This section could use some more eyes as I think there should be a smarter way to handle write error events.

Closes #2184

[codecov]

Codecov Report

Merging #2304 into master will decrease coverage by 0.00%.
The diff coverage is 82.35%.

@@            Coverage Diff             @@
##           master    #2304      +/-   ##
==========================================
- Coverage   71.75%   71.75%   -0.01%     
==========================================
  Files         156      156              
  Lines       20732    20736       +4     
==========================================
+ Hits        14877    14879       +2     
- Misses       5855     5857       +2     

[astafan8]

@trevormorgan so this PR works with both pyvisa 1.11 and 1.10.x?