BUG: Ensure getRandom() returns values within range (#219)

Co-authored-by: Jean-Christophe Fillion-Robin <jchris.fillionr@kitware.com>

libautoscoper/src/PSO.cpp

@@ -38,7 +38,7 @@ void intializeRandom()
 
 float getRandom(float low, float high)
 {
-  return low + (high - low + 1.0f)*(float)rand() / (RAND_MAX + 1.0f);
+  return low + getRandomClamped() * (high - low);
 }
 
 float getRandomClamped()