Building: Boost dependency errors

Fixes #15999

src/Mod/Part/App/Geometry.cpp

@@ -102,6 +102,7 @@
 # include <GeomAdaptor_HCurve.hxx>
 # endif
 
+# include <boost/random.hpp>
 # include <cmath>
 # include <ctime>
 #endif //_PreComp_

src/Mod/Part/App/PreCompiled.h

@@ -65,6 +65,7 @@
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/core/ignore_unused.hpp>
 #include <boost/math/special_functions/fpclassify.hpp>
+#include <boost/random.hpp>
 #include <boost/uuid/uuid_generators.hpp>
 #include <boost/uuid/uuid_io.hpp>