Avoids some redundant additions and subtractions by working internally in dBW instead of dBm

- fully remove calibration from sigan interfaces. all calibration handling happens at the sensor object level
- alter the sigan interface: retry logic and calibration scaling now happens in the sensor acquire_samples method instead of sigan versions.
- dynamically set data reference point as part the measurement result based on which calibration scaling was applied

automatically recompute calibration data in the getter method

- Remove outdated and unnecessary instance variables
- Remove retry logic from acquire_samples to account for changes in the Sensor object
- Remove redundant properties that are the same as the base class

These properties no longer need to be overriden. Subclass constructors can just set the correct instance variables instead.

- simplify recompute_calibration methods
- cal_params is now an argument of acquire_time_domain_samples, and is intended to be used by passing action.parameters dicts which contain the required key/values to match calibration data to the measurement
- add some specific calibration-related exceptions
- update actions and unit tests

…ce is available and total_channel_data_length is known during capture creation.

…librate_to_antenna