[ftools] fscaid: add option -E to set the receiving (ToHost) e-link different...
[ftools] fscaid: add option -E to set the receiving (ToHost) e-link different from the sending (FromHost) e-link arg.h: add arg_range_hex()
[ftools] fscaid: add option -E to set the receiving (ToHost) e-link different from the sending (FromHost) e-link arg.h: add arg_range_hex()