The -B, -G, -V reports now show rounding amounts

This way, if the running total is off by a penny or two due to rounding
of one or more commodities in the account, the user will see it.

This commit also reorganizes the testing code a bit, which I did after
adding the ninth test series (ConfirmTests), to validate the new
rounding code.

1 files changed, 3 insertions, 0 deletions

diff --git a/test/ExprTests.cc b/test/ExprTests.cc
new file mode 100644
index 00000000..d3f0a734
--- /dev/null
+++ b/test/ExprTests.cc
@@ -0,0 +1,3 @@
+#include <cppunit/extensions/HelperMacros.h>
+
+CPPUNIT_REGISTRY_ADD_TO_DEFAULT("expr");