Vojtech's Omnia Basic CW Firmware 0.3 Expermental Release

This is Vojtech's experimental firmware for the Omnia Basic SDR transceiver. This firmware integrates a standalone CW keyer with a smooth side tone and a standalone CW carrier generator, so there is virtually no latency between the keyer and the first dit sent, and the PC host application does not need to be aware that the SDR transmits. For the details, please read the release notes for the version 0.2

This release adds an application interface for the https://github.com/bubnikv/ExtIO_Omnia to control the output power and IQ phase / balance of the transmitted signal.