trying to add more test cases for msp create uart handle, and unity, inevitably patched for transfering test data thru malloced mem handle.
add new api to access testdata embedded in the malloced mem handle. fix minor bugs.
prepared to refine createUartExHandleInnerFail test case.
msp create_uartex_handle inner func failure test cases finished.
malloc fail test case for uartex handle create.
add msp equivalent of dmaex_handle_factory_destroy.
damex handle factory destroy, removed.
msp interface and test cases cleaned.
add (uartex handle) factory destroy method and partial test case to msp.
uartex handle factory destroy removed out of uartex module.
uartex handle factory create production code and test cases removed out of uartex module.
uartex handle interface, codes, tests cleaned.
dmaex handle ctor/dtor/factory cleaned.