Add all patch clamp types to latest icephys tutorial

[bendichter]

Motivation

I found that 3 of the patch clamp types were missing from our most recent icephys tutorial

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.88%. Comparing base (7087f00) to head (d177672).
Report is 1 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #2004   +/-   ##
=======================================
  Coverage   91.88%   91.88%           
=======================================
  Files          27       27           
  Lines        2711     2711           
  Branches      707      707           
=======================================
  Hits         2491     2491           
  Misses        144      144           
  Partials       76       76           

Flag	Coverage Δ
integration	72.85% <ø> (ø)
unit	82.84% <ø> (ø)

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[ehennestad]

@bendichter Should the types also be added to the file?