enable/disable caching

[luiztauffer]

Example:

@bendichter

[codecov[bot]]

Codecov Report

Merging #316 (4b6a6a7) into master (9885afc) will increase coverage by 0.02%. The diff coverage is 84.21%.

@@            Coverage Diff             @@
##           master     #316      +/-   ##
==========================================
+ Coverage   66.22%   66.24%   +0.02%     
==========================================
  Files          35       35              
  Lines        3467     3478      +11     
==========================================
+ Hits         2296     2304       +8     
- Misses       1171     1174       +3     

Flag	Coverage Δ
unittests	66.24% <84.21%> (+0.02%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
nwbwidgets/panel.py	76.70% <84.21%> (-0.27%)	:arrow_down:

:mega: We’re building smart automated test selection to slash your CI/CD build times. Learn more

[luiztauffer]

@bendichter done