BF: fix incompatibility of name of numpad keys in Windows PTB keyboard

[hsogo]

Please see #2660

[coveralls]

Coverage decreased (-0.007%) to 48.673% when pulling de30cbf on hsogo:master into b2d637e on psychopy:master.

[codecov-io]

Codecov Report

Merging #2812 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2812   +/-   ##
=======================================
  Coverage   44.45%   44.45%           
=======================================
  Files         242      242           
  Lines       45030    45030           
  Branches     7650     7650           
=======================================
  Hits        20019    20019           
- Misses      22951    22955    +4     
+ Partials     2060     2056    -4

Impacted Files	Coverage Δ
psychopy/hardware/keyboard.py	28.94% <ø> (ø)	⬆️
psychopy/visual/textbox/__init__.py	43.6% <0%> (ø)	⬆️
psychopy/app/builder/dialogs/dlgsConditions.py	7.51% <0%> (ø)	⬆️
...ychopy/localization/generateTranslationTemplate.py	0% <0%> (ø)	⬆️

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