MODSERIAL with support for more devices

Dependents:   1D-Pong BMT-K9_encoder BMT-K9-Regelaar programma_filter ... more

MODSERIAL does not work with latest mbed library

Not sure how else to fix this but to comment out the body of bool MODSERIAL::claim (FILE *stream)

Commented out the body of bool MODSERIAL::claim (FILE *stream) since it causes problems with the latest mbed library Buffered, MODSERIAL, Serial