[m.i1010] Unify random number generators (Closes #1010)

Merging branch 'm.i1010'  into 'main'.

See merge request !2673

Base/Math/Functions.cpp

@@ -116,7 +116,7 @@ double Math::GenerateStandardNormalRandom() // using c++11 standard library
 {
     unsigned seed =
         static_cast<unsigned>(std::chrono::system_clock::now().time_since_epoch().count());
-    std::default_random_engine generator(seed);
+    std::mt19937 generator(seed);
     std::normal_distribution<double> distribution(0.0, 1.0);
     return distribution(generator);
 }
@@ -131,7 +131,7 @@ double Math::GeneratePoissonRandom(double average) // using c++11 standard libra
 {
     unsigned seed =
         static_cast<unsigned>(std::chrono::system_clock::now().time_since_epoch().count());
-    std::default_random_engine generator(seed);
+    std::mt19937 generator(seed);
     if (average <= 0.0)
         return 0.0;
     if (average < 1000.0) { // Use std::poisson_distribution

GUI/Model/Material/MaterialsSet.cpp

@@ -42,7 +42,7 @@ QColor suggestMaterialColor(const QString& name)
 
     // return a random color
     static std::random_device r;
-    std::default_random_engine re(r());
+    std::mt19937 re(r());
     std::uniform_int_distribution<int> ru(0, 255);
 
     return QColor(ru(re), ru(re), ru(re));