New optional signal source adapter for the Pocket SDR FE 2CH/4CH/8CH
open-source GNSS RF front-ends, instantiating the gr-pocketsdr OOT
source block. Enable with -DENABLE_POCKETSDR=ON (requires gr-pocketsdr,
found via CMAKE_PREFIX_PATH or GRPOCKETSDR_ROOT).
The device is configured with a standard PocketSDR configuration file
(pocket_conf format) passed via SignalSource.conf_file; sampling rate
and LO frequency are read back from the device and validated against
SignalSource.sampling_frequency / SignalSource.freq.
Signed-off-by: Minhaj Ahmad <mahmad12@crimson.ua.edu>
Signed-off-by: Minhaj Ahmad <minhaj.sixbyte@gmail.com>