Initial Galileo receiver and SignalSim integration

src/galileo_rx/fixed_point/__init__.py

@@ -0,0 +1,7 @@
+"""Bit-true signed fixed-point models."""
+
+from .formats import FixedFormat, OverflowMode, RoundingMode
+from .fixed_fft import FixedRadix2Fft
+from .quantizer import Quantizer
+
+__all__ = ["FixedFormat", "OverflowMode", "RoundingMode", "Quantizer", "FixedRadix2Fft"]