Add Boost.System test suite

[SVN r39230]

status/Jamfile.v2

@@ -77,6 +77,7 @@ build-project ../libs/smart_ptr/test ;         # test-suite smart_ptr
 build-project ../libs/spirit/test ;            # test-suite spirit
 build-project ../libs/statechart/test ;        # test-suite statechart
 build-project ../libs/static_assert ;          # test-suite static_assert
+build-project ../libs/system/test ;            # test-suite system
 build-project ../libs/test/test ;              # test-suite test
 build-project ../libs/thread/test ;            # test-suite thread
 build-project ../libs/tr1/test ;               # test-suite tr1