sigProcLib: Add C/I (Carrier-to-Interference ratio) computation

Related: OS#4006
Change-Id: Ib4ceec553f2e5f77bf3f6777724968456a180f5e
diff --git a/Transceiver52M/sigProcLib.h b/Transceiver52M/sigProcLib.h
index 6d4ca9b..fd9a5f0 100644
--- a/Transceiver52M/sigProcLib.h
+++ b/Transceiver52M/sigProcLib.h
@@ -111,6 +111,7 @@
         complex amp;
         float toa;
         uint8_t tsc;
+        float ci;
 };
 /**
         8-PSK/GMSK/RACH burst detector