Add crash utility to CalamaresUtils.

src/libcalamares/utils/CalamaresUtils.cpp

@@ -329,4 +329,12 @@ obscure( const QString& string )
 }
 
 
+void
+crash()
+{
+    volatile int* a = (int*)(NULL);
+    *a = 1;
+}
+
+
 }

src/libcalamares/utils/CalamaresUtils.h

@@ -54,6 +54,8 @@ namespace CalamaresUtils
     DLLEXPORT QString removeDiacritics( const QString& string );
 
     DLLEXPORT QString obscure( const QString& string );
+
+    DLLEXPORT void crash();
 }
 
 #endif // CALAMARESUTILS_H