Added a method to GPrng to get a random uint32, which is about twice as fast as GetRandom<uint32_t>

GCryptLib/include/GCrypt/GPrng.h

@@ -46,6 +46,9 @@ namespace Leonetienne::GCrypt {
         return t;
       }
 
+      //! Will return a random unsigned 32-bit integer
+      std::uint32_t operator()();
+
       //! Will return a random block
       Block GetBlock();