Transceiver52M: Separate signalVector into it's own file

Break out the signalVector object and clean up the interface in the
process.

Signed-off-by: Thomas Tsou <tom@tsou.cc>
diff --git a/Transceiver52M/Makefile.am b/Transceiver52M/Makefile.am
index 735265f..8b37ea4 100644
--- a/Transceiver52M/Makefile.am
+++ b/Transceiver52M/Makefile.am
@@ -55,6 +55,7 @@
 	radioVector.cpp \
 	radioClock.cpp \
 	sigProcLib.cpp \
+	signalVector.cpp \
 	Transceiver.cpp
 
 libtransceiver_la_SOURCES = \
@@ -72,6 +73,7 @@
 	radioClock.h \
 	radioDevice.h \
 	sigProcLib.h \
+	signalVector.h \
 	Transceiver.h \
 	USRPDevice.h \
 	Resampler.h \