expedite-cxx: Added remaining tests.
expedite-cxx: Remove XXX and made some minor improvements.
Re-add C tests together with C++ so it is easier to compare

Conflicts:
	src/bin/cxx/tests.h
expedite-cxx: Merge Felipe's c3e798c with local changes.
expedite-cxx: Add missing C++ tests.
expedite-cxx: Rephrase a test to better perform.
expedite-cxx: Increase samples count to make measures a bit more steady.