20765: Turns off several exceptions in universal initialization (#165)

Disables several exceptions that are being suppressed by Python up the
stack but are affecting the Evolver: FE_INEXACT, FE_DIVBYZERO,
FE_UNDERFLOW, FE_OVERFLOW, and FE_INVALID.

src/Amalgam/PlatformSpecific.cpp

@@ -7,12 +7,24 @@
 #include <algorithm>
 #include <array>
 #include <cctype>
+#include <cfenv>
 #include <codecvt>
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
 #include <fstream>
 
+//perform universal initialization
+class PlatformSpecificStartup
+{
+public:
+    PlatformSpecificStartup()
+    {
+	    std::feclearexcept(FE_ALL_EXCEPT);
+    }
+};
+PlatformSpecificStartup _platform_specific_startup;
+
 #ifdef OS_WINDOWS
 
 	// TODO 15993: disable std::wstring_convert deprecation warning: no replacement in C++17 so