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Update finger_metrics.h #15

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kcalvinalvin
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Fix for the error thrown for

include/gestures/include/finger_metrics.h" In member function 'float gestures::Vecotr2::Mag() const': include/gestures/include/finger_metrics.h:38:12: error: 'sqrtf' was not declared in this scope
return sqrtf(MagSq());

Fix for the error thrown for 

include/gestures/include/finger_metrics.h" In member function 'float gestures::Vecotr2::Mag() const': include/gestures/include/finger_metrics.h:38:12: error: 'sqrtf' was not declared in this scope
  return sqrtf(MagSq());
@dblaber
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dblaber commented Aug 7, 2020

Please merge this! Simple problem, easy fix!

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