More functions using generic logger arguments.
More functions using generic logger arguments.

* include/fct.h (_fct_logger_i_vtable_t,
fct_logger_on_test_suite_startstop_stub,
fct_logger__on_test_suite_start, fct_logger__on_test_suite_end,
fct_junit_logger__on_test_suite_start,
fct_junit_logger__on_test_suite_end): All updated to use or deliver the
generic fct_logger_evt_t object.

* include/fct.h (fct_standard_logger__on_fct_start,
fct_standard_logger__on_test_suite_start,
fct_standard_logger__on_test_suite_end): Removed
unneccessary "on test suite start/stop" functions. They were empty for
the standard logger, and the vtable defines an appropriate stub
function.

imb/fctx,imb/fctx,imb/fctx,imb/fctx